Chevrolet 2008 T Series Owner'S Manual Download Page 154 | Manualshive

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In the United States, for best results use No. 2-D diesel
fuel year-round (above and below freezing conditions)
as oil companies blend No. 2-D fuel to address climate
differences. No. 1-D diesel fuel can be used in very cold
temperatures (when it stays below 0°F or

−

18°C);

however, it will produce a power and fuel economy loss.
Avoid the use of No. 1-D diesel fuel in warm or hot
climates. It can result in stalling, poor starting when the
engine is hot, and could damage the fuel injection
system.

It is acceptable to use diesel fuel containing up to 5%
biodiesel (B5), but the final blended fuel must meet the
same specification, ASTM D 975 (Grades No. 2-D or
No. 1-D S15 commonly known as Ultra Low Sulfur
diesel), as other fuels used in your vehicle, and the
biodiesel used for making this fuel must meet the latest
version of ASTM specification D 6751. Biodiesel is
produced from vegetable oils or animal fat that have been
chemically modified to reduce the possibility of damage
to the fuel system and engine. Higher concentration
(i.e., greater than B5) biodiesel-containing fuels or the
use of unmodified bio-oils blended into diesel fuel at any
concentration is not recommended and could damage the
fuel system and engine. Such damage would not be
covered by your warranty. If there are questions about
the biodiesel-containing fuels you are using, contact your
fuel supplier.

Because of the cleansing properties of biodiesel,
switching from straight diesel to a biodiesel blend can
prematurely restrict the fuel filter with normal deposits in
the fuel system. A fuel filter replacement might be
required sooner than the recommended interval.

Diesel fuel can foam when you fill the tank. This can
cause the automatic pump nozzle to shut off, even
though the tank is not full. If this happens, just wait for
the foaming to stop and then try filling the tank more
slowly. See Filling the Tank on page 5-14.

{

CAUTION:

Heat coming from the engine can cause the
fuel to expand and force the fuel out of the
tank. If something ignites the fuel, a fire could
start and people could be burned. To help
avoid this, try filling the tank more slowly and
fill the fuel tank only until the automatic nozzle
shuts off. Do not try to top it off.

5-8

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Summary of Contents for 2008 T Series

Page 1: ...icle 4 2 Towing 4 21 Service and Appearance Care 5 1 Service 5 3 Fuel 5 7 Checking Things Under the Hood 5 16 Rear Axle 5 51 Cab Tilting 5 52 Noise Control System 5 59 Bulb Replacement 5 60 Windshield Wiper Blade Replacement 5 60 Other Service Items 5 61 Tires 5 64 Appearance Care 5 75 Vehicle Identification 5 83 Electrical System 5 83 Capacities and Specifications 5 92 Maintenance Replacement Par...

Page 2: ... system may be offered or your vehicle may have been ordered without a front passenger or rear seats Keep this manual in the vehicle so it will be there if it is needed while you are on the road If the vehicle is sold leave this manual in the vehicle Using this Manual Many people read the owner manual from beginning to end when they first receive their new vehicle to learn about the vehicle s feat...

Page 3: ...you were to ignore the warning CAUTION These mean there is something that could hurt you or other people We tell you what the hazard is and what to do to help avoid or reduce the hazard Please read these cautions If you do not you or others could be hurt A circle with a slash through it is a safety symbol which means Do Not Do Not do this or Do Not let this happen iii ...

Page 4: ... The notice tells what to do to help avoid the damage When you read other manuals you might see CAUTION and NOTICE warnings in different colors or in different words There are also warning labels on the vehicle which use the same words CAUTION or NOTICE Vehicle Symbols The vehicle has components and labels that use symbols instead of text Symbols are shown along with the text describing the operat...

Page 5: ... Belt Use During Pregnancy 1 21 Lap Belt 1 22 Safety Belt Extender 1 23 Child Restraints 1 23 Older Children 1 23 Infants and Young Children 1 26 Child Restraint Systems 1 30 Lower Anchors and Tethers for Children LATCH 1 32 Securing a Child Restraint in Your Medium Duty Vehicle 1 32 Restraint System Check 1 34 Checking the Restraint Systems 1 34 Replacing Restraint System Parts After a Crash 1 34...

Page 6: ...ment could startle and confuse you or make you push a pedal when you do not want to Adjust the driver s seat only when the vehicle is not moving Slide lever A to the left to unlock the seat and slide the seat to where you want it Release the lever and try to move the seat with your body to make sure the seat is locked into place To adjust the lower seat cushion forward or backward pull up on lever...

Page 7: ...eatback Reclining Seatbacks CAUTION You can lose control of the vehicle if you try to adjust a manual driver s seat while the vehicle is moving The sudden movement could startle and confuse you or make you push a pedal when you do not want to Adjust the driver s seat only when the vehicle is not moving To tilt the seatback turn the reclining knob The knob is located on the outboard side of both se...

Page 8: ...d go into it receiving neck or other injuries The lap belt cannot do its job either In a crash the belt could go up over your abdomen The belt forces would be there not at your pelvic bones This could cause serious internal injuries For proper protection when the vehicle is in motion have the seatback upright Then sit well back in the seat and wear your safety belt properly Do not have a seatback ...

Page 9: ...valve is located on the outboard side of the driver s seat Pull the lever up to raise the seat Push the lever down to lower the seat Isolator Lock Lever The lever is located on the inboard side of the driver s seat Move the handle down to lock the seat in place This is used to reduce backslap experienced while in tractor trailer operation or while operating a dump truck Lever shown in the Locked P...

Page 10: ...ould cause injury to the person sitting there Always push and pull on the seatback to be sure it is locked Safety Belts Safety Belts They Are for Everyone This part of the manual tells you how to use safety belts properly It also tells you some things you should not do with safety belts CAUTION Do not let anyone ride where he or she cannot wear a safety belt properly If you are in a crash and you ...

Page 11: ...nadian provinces the law requires wearing safety belts Here is why You never know if you will be in a crash If you do have a crash you do not know if it will be a serious one A few crashes are mild and some crashes can be so serious that even buckled up a person would not survive But most crashes are in between In many of them people who buckle up can survive and sometimes walk away Without belts ...

Page 12: ...Put someone on it Get it up to speed Then stop the vehicle The rider does not stop 1 8 ...

Page 13: ...The person keeps going until stopped by something In a real vehicle it could be the windshield or the instrument panel 1 9 ...

Page 14: ...u are upside down And your chance of being conscious during and after an accident so you can unbuckle and get out is much greater if you are belted Q If I am a good driver and I never drive far from home why should I wear safety belts A You may be an excellent driver but if you are in a crash even one that is not your fault you and your passenger s can be hurt Being a good driver does not protect ...

Page 15: ...out of the vehicle in a crash And they can strike others in the vehicle who are wearing safety belts First before you or your passenger s wear a safety belt there is important information you should know Sit up straight and always keep your feet on the floor in front of you The lap part of the belt should be worn low and snug on the hips just touching the thighs In a crash this applies force to th...

Page 16: ...oo loose It will not give as much protection this way CAUTION You can be seriously hurt if your shoulder belt is too loose In a crash you would move forward too much which could increase injury The shoulder belt should fit snugly against your body 1 12 ...

Page 17: ...otection this way CAUTION You can be seriously hurt if your lap belt is too loose In a crash you could slide under the lap belt and apply force on your abdomen This could cause serious or even fatal injuries The lap belt should be worn low and snug on the hips just touching the thighs 1 13 ...

Page 18: ...an be seriously injured if your belt is buckled in the wrong place like this In a crash the belt would go up over your abdomen The belt forces would be there not on the pelvic bones This could cause serious internal injuries Always buckle your belt into the buckle nearest you 1 14 ...

Page 19: ...ured if your belt goes over an armrest like this The belt would be much too high In a crash you can slide under the belt The belt force would then be applied on the abdomen not on the pelvic bones and that could cause serious or fatal injuries Be sure the belt goes under the armrests 1 15 ...

Page 20: ...shoulder belt under your arm In a crash your body would move too far forward which would increase the chance of head and neck injury Also the belt would apply too much force to the ribs which are not as strong as shoulder bones You could also severely injure internal organs like your liver or spleen The shoulder belt should go over the shoulder and across the chest 1 16 ...

Page 21: ...ash you would not be restrained by the shoulder belt Your body could move too far forward increasing the chance of head and neck injury You might also slide under the lap belt The belt force would then be applied right on the abdomen That could cause serious or fatal injuries The shoulder belt should go over the shoulder and across the chest 1 17 ...

Page 22: ...oss the body CAUTION You can be seriously injured by a twisted belt In a crash you would not have the full width of the belt to spread impact forces If a belt is twisted make it straight so it can work properly or ask your dealer retailer to fix it 1 18 ...

Page 23: ...r belt may lock if you pull the belt across you very quickly If this happens let the belt go back slightly to unlock it Then pull the belt across you more slowly There is a clip on the lap portion of the lap shoulder belt Make sure this clip is not too close to the latch plate when you wear your safety belt so you can make the belt snug 3 Push the latch plate into the buckle until it clicks Pull u...

Page 24: ...lt in a crash See Shoulder Belt Height Adjustment later in this section 5 To make the lap part tight pull up on the shoulder belt It may be necessary to pull stitching on the safety belt through the latch plate to fully tighten the lap belt on smaller occupants To unlatch the belt push the button on the buckle The belt should go back out of the way Before you close a door be sure the belt is out o...

Page 25: ...height adjuster to where you want it try to move it down without pressing in to make sure it has locked into position Safety Belt Use During Pregnancy Safety belts work for everyone including pregnant women Like all occupants they are more likely to be seriously injured if they do not wear safety belts A pregnant woman should wear a lap shoulder belt and the lap portion should be worn as low as po...

Page 26: ...h has no retractor To make the belt longer tilt the latch plate and pull it along the belt Buckle position and release it the same way as the lap part of a lap shoulder belt To make the belt shorter pull its free end as shown until the belt is snug If the belt is not long enough see Safety Belt Extender on page 1 23 Make sure the release button on the buckle is positioned so you would be able to u...

Page 27: ...ill be long enough for you To help avoid personal injury do not let someone else use it and use it only for the seat it is made to fit The extender has been designed for adults Never use it for securing child seats To wear it attach it to the regular safety belt For more information see the instruction sheet that comes with the extender Child Restraints Older Children Older children who have outgr...

Page 28: ...ld should sit in a position with a lap shoulder belt and get the additional restraint a shoulder belt can provide Q What is the proper way to wear safety belts A An older child should wear a lap shoulder belt and get the additional restraint a shoulder belt can provide The shoulder belt should not cross the face or neck The lap belt should fit snugly below the hips just touching the top of the thi...

Page 29: ...s Here two children are wearing the same belt The belt cannot properly spread the impact forces In a crash the two children can be crushed together and seriously injured A belt must be used by only one person at a time 1 25 ...

Page 30: ...e child could also move too far forward increasing the chance of head and neck injury The shoulder belt should go over the shoulder and across the chest Infants and Young Children Everyone in a vehicle needs protection This includes infants and all other children Neither the distance traveled nor the age and size of the traveler changes the need for everyone to use safety restraints In fact the la...

Page 31: ...y can strike other people or can be thrown out of the vehicle In addition young children should not use the vehicle s adult safety belts alone they need to use a child restraint CAUTION People should never hold an infant in their arms while riding in a vehicle An infant does not weigh much until a crash During a crash an infant will become so heavy it is not CAUTION Continued CAUTION Continued pos...

Page 32: ...stem is designed for them Young children and infants need the protection that a child restraint system can provide Q What are the different types of add on child restraints A Add on child restraints which are purchased by the vehicle s owner are available in four basic types Selection of a particular restraint should take into consideration not only the child s weight height and age but also wheth...

Page 33: ...ak and its head weighs so much compared with the rest of its body In a crash an infant in a rear facing seat settles into the restraint so the crash forces can be distributed across the strongest part of an infant s body the back and shoulders Infants should always be secured in appropriate infant restraints CAUTION The body structure of a young child is quite unlike that of an adult or older chil...

Page 34: ...holds the infant in place and in a crash acts to keep the infant positioned in the restraint A forward facing child seat B provides restraint for the child s body with the harness A booster seat C D is a child restraint designed to improve the fit of the vehicle s safety belt system A booster seat can also help a child to see out the window 1 30 ...

Page 35: ...ing an add on child restraint refer to the instructions that come with the restraint which may be on the restraint itself or in a booklet or both and to this manual The child restraint instructions are important so if they are not available obtain a replacement copy from the manufacturer Keep in mind that an unsecured child restraint can move around in a collision or sudden stop and injure people ...

Page 36: ... the top tether be anchored Refer to your child restraint instructions and instructions in this manual for securing a child restraint using the vehicle s safety belts Securing a Child Restraint in Your Medium Duty Vehicle We know securing a child can present real problems in a medium duty vehicle like yours The only place where you can properly secure a child restraint is the center seating positi...

Page 37: ... 4 Push the latch plate into the buckle until it clicks Make sure the release button is positioned so you would be able to unbuckle the safety belt quickly if necessary 5 Tighten the belt by pulling its free end while you push down on the child restraint If you are using a forward facing child restraint you may find it helpful to use your knee to push down on the child restraint as you tighten the...

Page 38: ...elts clean and dry See Care of Safety Belts on page 5 77 Replacing Restraint System Parts After a Crash CAUTION A crash can damage the restraint systems in your vehicle A damaged restraint system may not properly protect the person using it resulting in serious injury or even death in a crash To help make sure your restraint systems are working properly after a crash have them inspected and any ne...

Page 39: ... Two Speed Rear Axle 2 17 Automatic Transmission Operation 2 19 Automatic Transmission Third Gear Hold 2 20 Manual Transmission Operation 2 21 Power Take Off PTO 2 22 Parking 2 23 Parking Brake With Hydraulic Brakes 2 23 Parking Brake With Air Brakes 2 24 Parking Brake Burnish Procedure 2 26 Air Suspension 2 27 Parking Over Things That Burn 2 27 Engine Exhaust 2 28 Diesel Particulate Filter 2 28 R...

Page 40: ...riously injured or killed if caught in the path of a closing window Do not leave the keys in a vehicle with children The key can be used for the ignition switch and all locks The key has a code on it that tells your dealer retailer or a qualified locksmith how to make extra keys Record and keep the key code in a safe place If the key is lost you can have a new one made using this code Notice If yo...

Page 41: ...ocked vehicles may be unable to get out A child can be overcome by extreme heat and can suffer permanent injuries or even death from heat stroke Always lock your vehicle whenever you leave it Outsiders can easily enter through an unlocked door when you slow down or stop your vehicle Locking your doors can help prevent this from happening A manual door lock is located above each door handle To lock...

Page 42: ...s They can be overcome by the extreme heat and suffer permanent injuries or even death from heat stroke Never leave a child a helpless adult or a pet alone in a vehicle especially with the windows closed in warm or hot weather Manual Windows Turn the hand crank on each door to raise or lower the window 2 4 ...

Page 43: ...te when the ignition is in ACC or ON Power Window Lock Switch Pressing the power window lock switch once locks the passenger side window and prevents it from opening or closing Pressing the switch a second time unlocks the passenger side window Express Down The driver s window has an express down feature This allows the window to be lowered fully without continuously holding the switch Press the s...

Page 44: ...eaned CAUTION Never open the passenger side door glass with the ignition on You can be injured if the window linkage moves Open this glass only with the ignition off To open the window cover pull on the latch at the rear of the window and swing the window cover open When closing the window cover push firmly at the latch to close completely 2 6 ...

Page 45: ...linings are not yet broken in Hard stops with new linings can mean premature wear and earlier replacement Follow this breaking in guideline every time you get new brake linings Use the lowest gear you can when you start a loaded vehicle in motion and when going up hills to avoid overloading the engine Check and adjust engine and transmission fluid levels often and be sure tires are properly inflat...

Page 46: ...y riders or thieves If you leave the key in the ignition and park your vehicle a chime will sound when you open the driver s door Always remember to remove your key from the ignition and take it with you This will lock your ignition and transaxle Also always remember to lock the doors The battery could be drained if you leave the key in the ignition while your vehicle is parked You may not be able...

Page 47: ...hicle serviced right away 3 If the engine does not start after 15 seconds of cranking turn the ignition key to LOCK OFF Wait one minute for the starter to cool then try the same steps again When your engine is cold let it run for a few minutes before you move your vehicle This lets oil pressure build up Your engine will sound louder when it is cold Notice If you are not in an idling vehicle and th...

Page 48: ...5 16 for more information Be sure you are using the proper fuel for existing weather conditions See What Fuel to Use on page 5 7 What Fuel to Use If the engine starts runs a short time then stops your vehicle needs service CAUTION Do not use gasoline or starting aids such as ether in the air intake They could damage your engine There could also be a fire which could cause serious personal injury E...

Page 49: ...P If the parking brake is not engaged then the engine shuts down after 15 minutes of continuous idling operation The driver can reset the engine shutdown timer by momentarily changing the position of the accelerator brake or clutch pedal or by shifting the transmission out of PARK P or NEUTRAL N Once reset the engine idle shutdown will restart the shutdown sequence described above and will continu...

Page 50: ...e engine or turn it to LOCK OFF to prevent the battery from draining High Idle System Manual High Idle System If your vehicle has this feature the manual high idle button is located in the instrument panel See Instrument Panel Overview on page 3 4 Instrument Panel Overview for more information This system can be used to increase your engine idle speed whenever the following conditions are met The ...

Page 51: ... Indicator Light on page 3 33 for more information When the engine coolant temperature is below 149 F 65 C and the outside temperature is below 50 F 10 C the exhaust restrictor will come on within 60 seconds of starting the engine After running the engine for an additional 10 seconds the engine idle will increase The exhaust restrictor will shut off and engine idle will return to normal once the e...

Page 52: ...ould come on when the ignition key is turned to ON RUN or START and should go out when the engine is running above idle If the light does not go out or comes back on during normal engine operation have the charging system checked right away This light tells you if the generator is not charging it does not reflect the condition of the battery See Charging System Light on page 3 23 for more informat...

Page 53: ... could cause an electrical shock Also the wrong kind of extension cord could overheat and cause a fire You could be seriously injured Plug the cord into a properly grounded three prong 110 volt AC outlet If the cord will not reach use a heavy duty three prong extension cord rated for at least 15 amps 4 Before starting the engine be sure to unplug and store the cord as it was before to keep it away...

Page 54: ...switch that will come on when the exhaust brake is active See Exhaust Brake Indicator Light on page 3 33 for more information When using the exhaust brake the proper gear range selection is important The exhaust brake will be most effective if the gear range selected is the lowest possible range that does not allow the engine rpm to exceed 2500 rpm If you have an automatic transmission and press t...

Page 55: ...ving in Low Range above 50 mph 80 5 kph will damage driveline components Drive below 50 mph 80 5 kph in Low Range If your vehicle has this feature there is a label on the headliner above the windshield or in another place near the driver that shows how to use it Be sure to follow the directions carefully Two Speed Rear Axle Shift Control Operation The rear axle shift control switch for automatic a...

Page 56: ...top of the switch to shift from High to Low Range 2 Release the accelerator pedal 3 Then push the accelerator pedal slowly until the axle shifts Split Upshift Manual Transmissions Only To downshift the axle with a transmission upshift 1 Push the clutch 2 Shift the Transmission to a higher gear 3 Shift the axle control from High to Low Range 4 Release the clutch 5 Push the accelerator pedal until t...

Page 57: ...he instructions on this label CAUTION It can be dangerous to get out of your vehicle without the parking brake firmly set Your vehicle can roll If you have left the engine running the vehicle can move suddenly You or others could be injured To be sure your vehicle will not move even when you are on fairly level ground always set the parking brake CAUTION Shifting into a drive gear while the engine...

Page 58: ...rn on the overdrive defeat Press the button again to turn off the overdrive defeat The indicator light in the button will come on whenever overdrive defeat is active Automatic Transmission Third Gear Hold If your vehicle has this feature your range selector has a 2 3 position You cannot shift up to the next higher gear when the transmission is in this position unless your engine governed speed is ...

Page 59: ...gine above two thirds of the governed speed When the engine speed drops below two thirds of the governed speed shift into the next lower gear before your engine begins to become sluggish When you shift down be sure to double clutch if required See Double Clutching later in this section Eaton Fuller Nine and Ten Speed Non Synchronized Manual Transmissions If your vehicle has one of these non synchr...

Page 60: ...engage the clutch pedal and shift the transmission into either the initial starting gear or REVERSE R If the tooth butting occurs between the clutching teeth re engage the clutch while applying light pressure to the shift lever This will provide for a smooth shift into either FIRST 1 or REVERSE R gear Notice Using the clutch brake for shifting into any gear other than FIRST 1 or REVERSE R may caus...

Page 61: ... PARK P for automatic transmission Parking Brake With Hydraulic Brakes If your vehicle has hydraulic brakes it has a parking brake lever The lever is located in the center console Your vehicle may also be equipped with an automatic transmission which has a center console shift lever This lever will have a PARK P position on the shift indicator Even when PARK P is selected be sure to apply the park...

Page 62: ...sing in the release button push the parking brake lever all the way down and shift the transmission to NEUTRAL The parking brake light will stay on if the parking brake is not fully released Notice Driving with the parking brake on can overheat the brake system and cause premature wear or damage to brake system parts Verify that the parking brake is fully released and the brake warning light is of...

Page 63: ... s air brake system do the following 1 Move your vehicle into the proper position 2 Apply the parking brake by pulling the yellow parking brake knob out 3 Hook up the trailer air system properly 4 Get into the vehicle 5 Push and hold down the regular brake pedal 6 Push in both the yellow parking brake and the red trailer air supply knobs This will charge your trailer s air system After a few minut...

Page 64: ...rakes on the truck or tractor If you ever have a complete loss of air so that your air brakes automatically apply there is a way that the tow operator can release the parking brakes to tow the vehicle See Towing Your Vehicle on page 4 21 Parking Brake Burnish Procedure All vehicles which have hydraulic brakes will have a parking brake It is recommended that the parking brake be burnished as part o...

Page 65: ... the operator to lower the deck height approximately 4 5 inches 11 5 cm from the normal frame height The switch to deflate and inflate the air suspension is located on the instrument panel Press the bottom of the switch to deflate the air suspension and lower the deck height Press the top of the switch to return the suspension to normal deck height An indicator light will come on and stay on whene...

Page 66: ...exhaust at the tailpipe This lowers the exhaust temperature before it leaves the tailpipe The DPF the tailpipe or other exhaust system components must not be altered The area where the exhaust cooler connects to the tailpipe should be inspected especially the area where the fresh air enters the cooler Make sure the openings are not restricted or plugged with mud or dirt which could inhibit exhaust...

Page 67: ...dure For the automatic regeneration drive until the green DPF indicator light goes off This will take approximately 20 minutes Once automatic regeneration has started drive until the green indicator light goes off to complete the regeneration in a single operation if possible During regeneration the green DPF indicator light will come on See Diesel Particulate Filter Warning Light on page 3 36 Not...

Page 68: ...become trapped in the DPF over the life of the vehicle Eventually the buildup of ash will restrict the exhaust gases and the DPF will need to be cleaned or replaced See Accessories and Modifications on page 5 3 for important information Manual Regeneration Procedure CAUTION During DPF regeneration the exhaust system and exhaust gases are very hot Stay clear of the tailpipe area and do not park ove...

Page 69: ...nob to increase the engine speed restore it all the way to the left to reduce the engine speed 7 If the vehicle has Power Take Off PTO turn the PTO off See Power Take Off PTO on page 2 22 8 Press the DPF switch on the instrument panel See Instrument Panel Overview on page 3 4 The green DPF indicator light comes on the exhaust gas control valve operates engine idle speed automatically increases and...

Page 70: ... a garage with the engine running Another closed in place can be a blizzard See Winter Driving on page 4 15 CAUTION It can be dangerous to get out of your vehicle if the automatic transmission shift lever is not fully in PARK P with the parking brake firmly set Your vehicle can roll Do not leave your vehicle when the engine is running unless you have to If you have left the engine running the vehi...

Page 71: ...ehicle from a comfortable driving position Some mirrors can be folded in to enter narrow passageways If the mirrors have the clearance lamps they will be on when the headlamps or parking lamps are on Outside Convex Mirrors CAUTION A convex mirror can make things like other vehicles look farther away than they really are If you cut too sharply into the right or left lane you could hit a vehicle Che...

Page 72: ...light will come on and stay on whenever the outside heated rearview mirrors are activated Storage Areas Overhead Storage An overhead storage compartment is provided above each of the driver s and passenger s seats To open push down on the inner button and lift the compartment doors all the way up to lock in position Be sure the doors are securely closed before moving the vehicle 2 34 ...

Page 73: ...ess the compartment you must first pull down on the handle located on the passenger side to fold the seat all the way forward To open squeeze both sides of the latch Center Console Storage There are additional storage areas for small items in the center console to the right of the driver s seat 2 35 ...

Page 74: ... NOTES 2 36 ...

Page 75: ... 3 19 Warning Lights Gages and Indicators 3 20 Instrument Panel Cluster 3 21 Speedometer and Odometer 3 22 Trip Odometer 3 22 Tachometer 3 22 Engine Speed Limiter 3 22 Safety Belt Reminders 3 23 Charging System Light 3 23 Voltmeter Gage 3 24 Service Transmission Warning Light 3 24 Range Inhibit Warning Indicator 3 25 Brake System Warning Light 3 25 Antilock Brake System Warning Light 3 27 Trailer ...

Page 76: ... Indicator Light 3 34 Check Gages Warning Light 3 35 Fuel Gage 3 35 Water in Fuel Warning Light 3 36 Diesel Particulate Filter Warning Light 3 36 Air Pressure Gage 3 37 Hourmeter Gage 3 37 Audio System s 3 38 Setting the Clock 3 39 Radio s 3 40 Radio Reception 3 45 Fixed Mast Antenna 3 45 Section 3 Instrument Panel 3 2 ...

Page 77: ... NOTES 3 3 ...

Page 78: ...Instrument Panel Overview 3 4 ...

Page 79: ...wer Take Off PTO on page 2 22 K Front Panel Release See Lifting the Front Panel on page 5 58 L Tilt Steering Column See Tilt Wheel on page 3 6 M Horn See Horn on page 3 6 N Air Brake Controls If Equipped See Parking Brake With Hydraulic Brakes on page 2 23 or Parking Brake With Air Brakes on page 2 24 O Two Speed Rear Axle Button See Two Speed Rear Axle on page 2 17 Air Suspension Indicator If Equ...

Page 80: ...with or without the key in the ignition When the hazard warning flashers are on the turn signals will not work The hazard warning flashers will not flash if the brakes are applied Other Warning Devices If you carry reflective triangles you can set them up at the side of the road about 300 feet 100 m behind your vehicle Horn Sound the horn by firmly pressing the pad in the center of the steering wh...

Page 81: ...y down Turn Signal Multifunction Lever The multifunction lever located on the left side of the steering column includes the following G Turn and Lane Change Signals See Turn and Lane Change Signals on page 3 8 Headlamp High Beam Low Beam Changer See Headlamp High Low Beam Changer on page 3 8 Flash to pass See Flash to Pass on page 3 8 3 Headlamps See Headlamps on page 3 13 J Cruise Control if equi...

Page 82: ...n you signal a turn check for burned out bulbs and a blown fuse See Fuses and Circuit Breakers on page 5 84 Headlamp High Low Beam Changer Push the multifunction lever toward the instrument panel to change the headlamps from low to high beam To return to low beam headlamps pull the multifunction lever toward you Then release it This indicator light on the instrument panel cluster comes on while th...

Page 83: ...tting to operate the windshield wipers at a low speed RR HI Turn the knob to this setting to operate the windshield wipers at a high speed Be sure to clear ice and snow from the wiper blades before using them If they are frozen to the windshield carefully loosen or thaw them If your blades do become worn or damaged get new blades or blade inserts For more information see Windshield Wiper Blade Rep...

Page 84: ... does not work at speeds below about 25 mph 40 km h If your vehicle has this feature the controls are located on the multifunction lever on the left side of the steering column If the vehicle has a automatic transmission and the brakes are applied the cruise control will shut off If the vehicle has a manual transmission and the brakes are applied or the clutch pedal is pushed the cruise control wi...

Page 85: ...TION If you leave your cruise control on when you are not using cruise you might hit a button and go into cruise when you do not want to You could be startled and even lose control Keep the cruise control switch off until you want to use cruise control 1 Press the J button to turn the cruise control on The light inside the switch will turn on 2 Get up to the speed you want 3 Press in the J SET but...

Page 86: ... the band on the multifunction lever to the RES position and release it Each time this is done the vehicle will go about 1 mph 1 6 km h faster Reducing Speed While Using Cruise Control Press the J SET button until you reach the lower speed desired then release it To slow down in very small amounts tap the button briefly Each time this is done your vehicle goes about 1 mph 1 6 km h slower Passing A...

Page 87: ...this symbol to operate the exterior lamps The exterior lamp band has three positions 9 OFF Turn the band to this position to turn off all lamps except the daytime running lamps DRL Parking Lamps Turn the band to this position to turn on the parking lamps together with the following Marker Lamps unless your vehicle has the marker and clearance lamps switch Tail Lamps License Plate Lamps Instrument ...

Page 88: ...at reduced brightness when the following conditions are met The ignition is on The headlamp band is in the OFF position The parking brake is released When the DRL are on only your low beam headlamps will be on The exterior lamps and instrument panel will not be lit When it begins to get dark the DRL indicator light is a reminder to turn your headlamp switch on The other lamps that come on with you...

Page 89: ...your vehicle has this feature the knob is located on the lower right of the instrument panel Turn the knob counterclockwise to brighten the instrument panel lights or clockwise to dim them Dome Lamps The dome lamp switch can be set to three different positions DOOR OFF and ON When the switch is set to DOOR the dome lamp will come on only when the driver s door is open If the switch is set in the O...

Page 90: ...r vehicle to learn more about this switch or see your dealer for more information Auxiliary Power Jacks If your vehicle has these power jacks they are on the console to the right of the driver s seat These jacks provide 12 volt power so you can operate things such as a citizen s band CB radio or a cellular phone You will see positive red and negative black outlets They are protected by a 15 amp ci...

Page 91: ...n all the way and let it go When it s ready it will pop back out by itself Notice Holding a cigarette lighter in while it is heating does not let the lighter back away from the heating element when it is hot Damage from overheating can occur to the lighter or heating element or a fuse could be blown Do not hold a cigarette lighter in while it is heating Climate Controls Climate Control System With...

Page 92: ... keep outside air odors and dust from entering your vehicle Recirculation is not available in Defog or Defrost modes A C Air Conditioning If your vehicle has this feature you can use your air conditioner by selecting one of the mode buttons selecting a fan speed and pressing the A C button On hot days open the windows to let hot inside air escape then close them This helps to reduce the time it ta...

Page 93: ... or below freezing Recirculation cannot be selected while in the defrost mode Outlet Adjustment The air outlets are located in the center and on the sides of your instrument panel See Instrument Panel Overview on page 3 4 You can move the vents to direct the flow of air or close the outlets altogether When you close a vent it will increase the flow of air coming out of any vents that are open Keep...

Page 94: ...es could also save you or others from injury Warning lights come on when there may be or is a problem with one of your vehicle s functions As you will see in the details on the next few pages some warning lights come on briefly when you start the engine just to let you know they are working If you are familiar with this section you should not be alarmed when this happens Gages can indicate when th...

Page 95: ...instrument panel cluster is designed to let you know at a glance how your vehicle is running You will know how fast you are going about how much fuel is left and many other things you will need to drive safely and economically 3 21 ...

Page 96: ...e reset button located to the right of the trip odometer to toggle between the trip odometer and the regular odometer Holding the reset button for two seconds while the engine is running and the trip odometer is displayed will reset it To display the odometer reading with the ignition off press the reset button The hourmeter gage is accessed through the trip odometer for more information see Hourm...

Page 97: ...on and stay on for several seconds Safety Belt Reminder Tone If your vehicle has this feature when the engine is started a tone will sound for several seconds to remind people to fasten their safety belts Charging System Light The charging system light may be located in the instrument panel cluster or with the auxiliary warning lights in the center of the instrument panel It should come on briefly...

Page 98: ...ht If your vehicle has an Allison automatic transmission certain transmission malfunctions will turn this light on This light is located with the auxiliary warning lights in the center of the instrument panel If this light comes on while you are driving do not use the transmission shift control or you may lose forward gears The computer for the transmission senses a problem and chooses a gear to s...

Page 99: ...nformation Brake System Warning Light Your vehicle has either hydraulic or air brakes Each system has different warning lights Hydraulic Brake System Warning Lights Vehicles with hydraulic brake systems have two brake system warning lights on the instrument panel If this light comes on the fluid level in the master cylinder reservoir is low or there is a problem with the hydraulic brakes When it c...

Page 100: ...oad and stop carefully You may notice that the pedal is harder to push or the pedal may go closer to the floor It may take longer to stop If the brake system warning light is still on have the vehicle towed for service See Towing Your Vehicle on page 4 21 See Hydraulic Brake Systems under Braking on page 4 3 for further information Parking Brake Warning Light This light will also come on when you ...

Page 101: ...oon as you can You will not know how quickly the system is losing pressure so be aware that the parking brake may come on suddenly Antilock Brake System Warning Light This light will come on briefly when you start the engine then it will turn off This is normal If the light stays on or comes on when you are driving your vehicle needs service If the brake or low air warning light is not on you stil...

Page 102: ...ck Brake System ABS Have the system repaired immediately If an ABS equipped trailer is not connected this light is not functional Traction Control System TCS Active Light If your vehicle has the Traction Control System TCS this light will come on when the system is limiting wheel spin Slippery road conditions may exist if the TCS active light comes on so adjust your driving accordingly The light w...

Page 103: ...rning Light Your vehicle has a low coolant warning light If this light comes on the system is low on coolant and the engine may overheat The warning light should come on briefly as a check when you turn on the ignition When it comes on you will also hear a warning tone for 10 seconds See Engine Coolant on page 5 25 and have your vehicle serviced as soon as you can This light may also come on if yo...

Page 104: ...st you will not notice any difference in engine performance but the tail pipe emissions might increase Second the engine might not run properly or could stall without warning If either of these things happen drive or tow your vehicle to your dealer retailer for service This light should come on when the ignition is on but the engine is not running as a check to show you it is working If it does no...

Page 105: ...ng in the low pressure zone may be caused by a dangerously low oil level or other problem See Engine Oil on page 5 16 and Scheduled Maintenance on page 6 5 for more information CAUTION Do not keep driving if the oil pressure is low If you do your engine can become so hot that it catches fire You or others could be burned Check your oil as soon as possible and have your vehicle serviced Notice Lack...

Page 106: ...amage the engine The repairs would not be covered by your warranty Always follow the maintenance schedule in this manual for changing engine oil Change Engine Oil Light Your vehicle may have a change engine oil light It should come on briefly as a bulb check when you start the engine If the light does not come on have it serviced If the change engine oil light comes on and stays on after you start...

Page 107: ...mation Exhaust Brake Indicator Light For vehicles with an exhaust brake this light is located above the climate controls The exhaust brake indicator light will come on and stay on whenever the diesel engine exhaust brake or exhaust restrictor is active For more information see Diesel Engine Exhaust Brake on page 2 16 Differential Lock Indicator Light If your vehicle has this feature this light is ...

Page 108: ...ay be driven at a slower speed while the reduced engine power light is on but acceleration and speed may be limited Anytime the service engine soon light stays on the vehicle should be taken to your dealer retailer as soon as possible for service Highbeam On Light This light comes on when the high beam headlamps are in use See Headlamp High Low Beam Changer on page 3 8 for more information Daytime...

Page 109: ...tivated until the problem is corrected This light may also come on if your vehicle is has automatic engine shutdown system and engine shutdown has begun See Engine Alarm and Automatic Shutdown on page 2 10 Fuel Gage Your fuel gage is located on the right side of your instrument panel cluster When the ignition is on your fuel gage lets you know about how much fuel you have left When the gage first ...

Page 110: ...mation on how this light works see Water in Fuel on page 5 10 Diesel Particulate Filter Warning Light Your vehicle may have two Diesel Particulate Filter DPF Warning lights These lights will come on briefly when the ignition is turned to ON One of these lights will come on green during DPF regeneration If the other light comes on yellow perform a manual regeneration or drive the vehicle for automa...

Page 111: ...nough air if you need to apply your brakes Hourmeter Gage To access the engine hourmeter gage press the trip odometer button three times The instrument panel cluster displays the accumulated engine run time hours using the reconfigurable odometer display The engine run time hours displays only when the ignition is in the LOCK OFF or ACC ACCESSORY position and the trip reset switch is pressed for a...

Page 112: ...n help avoid distraction while driving While your vehicle is parked Familiarize yourself with all of its controls Familiarize yourself with its operation Set up your audio system by presetting your favorite radio stations setting the tone and adjusting the speakers Then when driving conditions permit you can tune to your favorite radio stations using the presets and steering wheel controls if the ...

Page 113: ...rest hour if needed allows for a quicker and more accurate way of setting the time CLOCK Press this button to enter the clock setting mode Press and release this button to toggle between the clock and the function mode While the clock is displayed the radio and CD player can be used If a change is made to the radio or CD player settings the display shows the change for 10 seconds before returning ...

Page 114: ...w to go to a higher or to a lower frequency Press either arrow for less than a second and the station frequency changes by one Press either arrow for one second or more to seek stations with a strong signal that are in the selected band in ascending order SCAN Press to scan radio stations in the direction of increasing frequencies The radio goes to a station plays for a few seconds then goes to th...

Page 115: ... bass or treble level Each time the AUDIO button is pressed the audio mode indicator changes Once the desired tone displays press either y z arrow to increase or decrease the setting If a station is weak or has static decrease the treble If AUDIO is not pressed after 10 seconds audio mode times out and returns to NORMAL MODE Adjusting the Speakers Fade Balance AUDIO To adjust the fade between the ...

Page 116: ... the player When the ignition or radio is turned on the CD starts playing where it stopped if it was the last selected audio source When a CD is inserted the CD symbol displays As each new track starts to play the track number displays The CD player can play the smaller 3 inch 8 cm single CDs with an adapter ring Full size CDs and the smaller CDs are loaded in the same manner Care of Your CDs If p...

Page 117: ... time and keep the CD player and the loading slot free of foreign materials liquids and debris If an error displays see CD Messages later in this section 1 RDM Random Press to hear the tracks in random rather than sequential order Press again to turn off random play 2 RPT Press and release it to repeat the track being played yz Track Up Down Press and release the up arrow to move to the beginning ...

Page 118: ...io off CDs can be loaded with the radio and ignition off if this button is pressed first CD Messages If the CD comes out it could be for one of the following reasons It is very hot When the temperature returns to normal the CD should play You are driving on a very rough road When the road becomes smoother the CD should play The CD is dirty scratched wet or upside down The air is very humid If so w...

Page 119: ...etter radio reception most AM radio stations boost the power levels during the day and then reduce these levels during the night Static can also occur when things like storms and power lines interfere with radio reception When this happens try reducing the treble on your radio FM Stereo FM stereo gives the best sound but FM signals reach only about 10 to 40 miles 16 to 65 km Tall buildings or hill...

Page 120: ... NOTES 3 46 ...

Page 121: ... Traction Control System TCS 4 7 Steering 4 8 Off Road Recovery 4 10 Passing 4 11 Loss of Control 4 11 Driving at Night 4 12 Driving in Rain and on Wet Roads 4 13 Highway Hypnosis 4 14 Hill and Mountain Roads 4 14 Winter Driving 4 15 If Your Vehicle is Stuck in Sand Mud Ice or Snow 4 18 Rocking Your Vehicle to Get It Out 4 18 Tow Hooks 4 19 Loading Your Vehicle 4 19 Towing 4 21 Towing Your Vehicle...

Page 122: ...ction can cause collisions resulting in injury or possible death These simple defensive driving techniques could save your life Drunk Driving CAUTION Drinking and then driving is very dangerous Your reflexes perceptions attentiveness and judgment can be affected by even a small amount of alcohol You can have a serious or even fatal collision if you drive after drinking Do not drink and drive or ri...

Page 123: ...er than if the person had not been drinking Control of a Vehicle The following three systems help to control your vehicle while driving brakes steering and accelerator At times as when driving on snow or ice it is easy to ask more of those control systems than the tires and road can provide Meaning you can lose control of your vehicle Braking See Brake System Warning Light on page 3 25 Braking act...

Page 124: ...the pedal could get harder to push down If the engine stops you will still have some power brake assist But you will use it when you brake Once the power assist is used up it can take longer to stop and the brake pedal will be harder to push Hydraulic Brake Systems If the engine stops running or if the primary brake system stops working your vehicle has a reserve power assist system to help you sl...

Page 125: ...ssure faster than any driver could The computer is programmed to make the most of available tire and road conditions This can help you steer around the obstacle while braking hard As you brake the computer keeps receiving updates on wheel speed and controls braking pressure accordingly Remember ABS does not change the time you need to get your foot up to the brake pedal or always decrease stopping...

Page 126: ...you have to Use this control only when you are driving Do not use it for parking or to hold the rig on a hill CAUTION Using the trailer brake hand control for parking or for holding the vehicle on a hill may not keep the vehicle from rolling This can happen if someone hits the valve by accident or if air pressure bleeds from the system If the vehicle rolls you or others could be injured To park th...

Page 127: ... system operates only if it senses that one or both of the rear wheels are spinning or beginning to lose traction When this happens the system applies the brake s at the affected wheel s The bottom light on the TCS on off button will come on when the TCS is limiting wheel spin You may feel or hear the system working but this is normal The TCS will function at speeds up to about 25 mph 42 km h The ...

Page 128: ...affect your vehicle s performance See Accessories and Modifications on page 5 3 for more information Steering Power Steering If you lose power steering assist because the engine stops or the system is not functioning you can steer but it will take much more effort On vehicles with hydraulic brakes the power steering and main hydraulic brake system both use the power steering pump See Braking on pa...

Page 129: ...ower If you need to reduce your speed as you approach a curve do it before you enter the curve while the front wheels are straight ahead Try to adjust your speed so you can drive through the curve Maintain a reasonable steady speed Wait to accelerate until you are out of the curve and then accelerate gently into the straightaway Steering in Emergencies There are times when steering can be more eff...

Page 130: ...d reason to practice defensive driving at all times and wear safety belts properly Off Road Recovery You may find that your right wheels have dropped off the edge of a road onto the shoulder while you are driving If the level of the shoulder is only slightly below the pavement recovery should be fairly easy Ease off the accelerator and then if there is nothing in the way steer so that your vehicle...

Page 131: ...Control Let us review what driving experts say about what happens when the three control systems brakes steering and acceleration do not have enough friction where the tires meet the road to do what the driver has asked In any emergency do not give up Keep trying to steer and constantly seek an escape route or area of less danger Skidding In a skid a driver can lose control of the vehicle Defensiv...

Page 132: ...ake System ABS remember It helps avoid only the braking skid If you do not have ABS then in a braking skid where the wheels are no longer rolling release enough pressure on the brakes to get the wheels rolling again This restores steering control Push the brake pedal down steadily when you have to stop suddenly As long as the wheels are rolling you will have steering control Driving at Night Night...

Page 133: ...e to be carried away If this happens you and other vehicle occupants could drown Do not ignore police warnings and be very cautious about trying to drive through flowing water Hydroplaning Hydroplaning is dangerous Water can build up under your vehicle s tires so they actually ride on the water This can happen if the road is wet enough and you are going fast enough When your vehicle is hydroplanin...

Page 134: ...nd Mountain Roads Driving on steep hills or through mountains is different than driving on flat or rolling terrain Tips for driving in these conditions include Keep your vehicle serviced and in good shape Check all fluid levels and brakes tires cooling system and transmission Going down steep or long hills shift to a lower gear CAUTION If you do not shift down the brakes could get so hot that they...

Page 135: ... accident Pay attention to special road signs falling rocks area winding roads long grades passing or no passing zones and take appropriate action Winter Driving Here are some tips for winter driving Be sure the vehicle is in good shape for winter You might want to put winter emergency supplies in your vehicle Include an ice scraper a small brush or broom a supply of windshield washer fluid a rag ...

Page 136: ...tion Control System TCS on page 4 7 If your vehicle does not have TCS accelerate gently Try not to break the fragile traction If you accelerate too fast the drive wheels will spin and polish the surface under the tires even more Unless your vehicle has the Antilock Brake System ABS you will want to brake very gently too If you do have ABS see Antilock Brake System ABS on page 4 5 ABS improves your...

Page 137: ...rm but be careful CAUTION Snow can trap exhaust gases under your vehicle This can cause deadly CO carbon monoxide gas to get inside CO could overcome you and kill you You cannot see it or smell it so you might not know it is in your vehicle Clear away snow from around the base of your vehicle if any is blocking your exhaust pipe And check around again from time to time to be sure snow does not col...

Page 138: ...our vehicle s traction system in the Index If the stuck condition is too severe for the traction system to free the vehicle turn the traction system off and use the rocking method CAUTION If you let your vehicle s tires spin at high speed they can explode and you or others could be injured The vehicle can overheat causing an engine compartment fire or other damage Spin the wheels as little as poss...

Page 139: ...the front of the vehicle You may need to use them if you are stuck off road and need to be pulled to some place where you can continue driving Loading Your Vehicle It is the responsibility of the Final Stage manufacturer to install a Certification label on your vehicle This label shows how much weight your vehicle can properly carry It may also show the size of the vehicle s original tires and the...

Page 140: ...he right way Notice Overloading your vehicle may cause damage Repairs would not be covered by your warranty Do not overload your vehicle If you put things inside your vehicle like suitcases tools packages or anything else they go as fast as the vehicle goes If you have to stop or turn quickly or if there is a crash they keep going CAUTION Things you put inside your vehicle can strike and injure pe...

Page 141: ...he springs can lead to injury Never work on the air brakes chambers without first using the release studs to compress the brake springs When the brake springs are manually compressed you will have no brakes Release your air operated parking brakes manually only to tow the vehicle Never drive the vehicle with the brakes released Consult your dealer retailer or a professional towing service if you n...

Page 142: ... the disabled vehicle On vehicles with air brakes release the emergency brake system by compressing the brake chamber springs as outlined in this section This is to prevent the possibility of the emergency brake being applied during towing On vehicles with hydraulic brakes release the parking brake fully by moving the lever to the fully released position Towing the Vehicle with the Front Bumper Re...

Page 143: ... towing vehicle and the disabled vehicle Before Towing Block the wheels of the disabled vehicle On vehicles with air brakes release the emergency brake system by compressing the brake chamber springs as outlined in this section This is to prevent the possibility of the emergency brake being applied during towing On vehicles with hydraulic brakes release the parking brake fully by moving the lever ...

Page 144: ...ecting from the towing vehicle 3 Check and fill the rear axle with oil as required Releasing Air Operated Parking Brakes If your vehicle has air brakes you could have a special towing problem If your vehicle has to be towed because of a complete loss of air pressure from both systems the parking brakes will have automatically engaged The tow operator can release the brakes manually by using the fo...

Page 145: ... brakes Follow the same procedure to release the other brake or brakes 7 At the repair facility apply air pressure of at least 70 psi 480 kPa to the brake chambers either from an external air supply or the vehicle s air system 8 Turn the stud nut counterclockwise several turns Remove the stud from the chamber 9 Replace the stud and washer and tighten the nut into the side of the chamber 10 Replace...

Page 146: ...e that will connect to the trailer supplying power to the trailer s lighting system When not in use it is stored in the trailer air hose storage bracket Heavy Duty Trailer Wiring Package Your vehicle may have an eight wire trailer towing harness This harness with a seven pin universal heavy duty trailer connector is attached to a bracket on the platform hitch The Center High Mounted Stoplamp CHMSL...

Page 147: ...Manual Transmission Fluid 5 24 Hydraulic Clutch 5 24 Engine Coolant 5 25 Coolant Surge Tank Pressure Cap 5 28 Engine Overheating 5 28 Cooling System 5 30 Power Steering Fluid 5 34 Windshield Washer Fluid 5 35 Brakes 5 36 Battery 5 45 Jump Starting 5 46 Rear Axle 5 51 Rear Axle Shift Motor 5 52 Cab Tilting 5 52 Before You Tilt the Cab 5 52 Tilting the Cab 5 53 Lowering the Cab 5 56 Lifting the Fron...

Page 148: ...ld and Wiper Blades 5 80 Aluminum Wheels 5 80 Tires 5 81 Sheet Metal Damage 5 81 Finish Damage 5 81 Underbody Maintenance 5 81 Chemical Paint Spotting 5 81 Vehicle Care Appearance Materials 5 82 Vehicle Identification 5 83 Vehicle Identification Number VIN 5 83 Electrical System 5 83 Add On Electrical Equipment 5 83 Headlamp Wiring 5 83 Windshield Wiper Fuses 5 83 Fusible Links 5 84 Power Windows ...

Page 149: ...durability and electronic systems like anti lock brakes traction control and stability control could be affected Some non dealer accessories could even cause malfunction or damage to parts and systems and would not be covered by the vehicle warranty GM Accessories are designed to complement and function with other systems on your vehicle Your GM dealer can accessorize your vehicle using genuine GM...

Page 150: ...vetrain Damage failure or reduced life of the engine transmission emission system drivetrain or other vehicle components caused by aftermarket engine performance enhancement products or modifications may not be covered under your vehicle warranty California Proposition 65 Warning Most motor vehicles including this one contain and or emit chemicals known to the State of California to cause cancer a...

Page 151: ...hicle Be sure to use the proper nuts bolts and other fasteners English and metric fasteners can be easily confused If you use the wrong fasteners parts can later break or fall off You could be hurt If you want to do some of your own service work you will want to use the proper service manual It tells you much more about how to service your vehicle than this manual can To order the proper service m...

Page 152: ... vehicle Do not change the fan drive ratio or increase the governed speed of the vehicle without getting the necessary information from your dealer CAUTION Continued CAUTION Continued Winter Fronts Grille Covers or Obstructions Winter Fronts grille covers or other add on equipment causing obstructions in front or behind the fan should not be used on this vehicle If this causes the fan to eventuall...

Page 153: ...tice Use of diesel fuel other than Ultra Low Sulfur Diesel 15 ppm sulfur maximum or engine oil other than low ash CJ 4 oil will cause permanent damage to the DPF and related components This damage would not be covered by your warranty The emission control system requires the use of diesel fuel with ultra low sulfur 0 0015 by weight or 15 ppm maximum content Both Ultra Low Sulfur Diesel and Low Sul...

Page 154: ...concentration i e greater than B5 biodiesel containing fuels or the use of unmodified bio oils blended into diesel fuel at any concentration is not recommended and could damage the fuel system and engine Such damage would not be covered by your warranty If there are questions about the biodiesel containing fuels you are using contact your fuel supplier Because of the cleansing properties of biodie...

Page 155: ...tions about the fuel you are using contact your fuel supplier Canadian fuels are blended for seasonal changes Diesel Type A fuel is blended for better cold weather starting below 0 F or 18 C however you might notice some power and fuel economy loss If Type A fuel is used in warmer temperatures stalling and hard starting may occur Diesel Type B fuel is blended for temperatures above 0 F 18 C It is ...

Page 156: ...If there is water in your diesel fuel and the weather is warm or humid fungus and bacteria can grow in the fuel They can damage your fuel system A diesel fuel biocide can be used to sterilize your fuel system However your fuel system may still need to be cleaned Your dealer retailer can advise you of the appropriate solution If your fuel tank needs to be purged to remove water see your dealer reta...

Page 157: ...ount of water was possibly pumped into the fuel tank Fuel tank purging is required See your dealer retailer for assistance Notice If you drive when this warning indicator is on you can damage your fuel injection system and your engine If the indicator comes on right after you refuel it means water was pumped into your fuel tank Turn off your engine immediately Then have the water drained at once T...

Page 158: ...iming procedure See Fuel Priming following 10 Start your engine and check that there are no leaks If the water in fuel light comes on again after driving a short distance or if the engine runs rough or stalls a large amount of water has probably been pumped into the fuel tank The fuel tank should be purged Fuel Priming In order for the diesel engine fuel system to work properly the fuel lines must...

Page 159: ...nce becomes firm This may take from 20 to 100 times depending upon fuel tank location 7 Turn the fuel filter breather valve screw 2 left counterclockwise several turns to open the breather valve 8 Use the palm of your hand to repeatedly press and release the plunger 1 at the top of the fuel filter priming pump until fuel begins to seep from the breather valve 9 Tighten the fuel filter breather scr...

Page 160: ...s to run but does not run smoothly increase the rpm a little using the accelerator pedal This will help force air through the system Your service engine soon light may come on if the vehicle has run out of fuel This light may stay on for a few drive cycles after the condition is corrected but will eventually clear itself Filling the Tank CAUTION Fuel vapor burns violently and a fuel fire can cause...

Page 161: ...ss noise to stop Then unscrew the cap all the way When replacing the fuel cap turn it clockwise until it is tight CAUTION If a fire starts while you are refueling do not remove the nozzle Shut off the flow of fuel by shutting off the pump or by notifying the station attendant Leave the area immediately Notice If you need a new fuel cap be sure to get the right type Your dealer retailer can get one...

Page 162: ...hicle in a vehicle s trunk pickup bed or on any surface other than the ground Bring the fill nozzle in contact with the inside of the fill opening before operating the nozzle Contact should be maintained until the filling is complete Do not smoke while pumping fuel Do not use a cellular phone while pumping fuel Checking Things Under the Hood Engine Oil Checking Engine Oil It is a good idea to chec...

Page 163: ...ush it back in all the way 3 Remove the dipstick again keeping the tip down and check the oil level When to Add Engine Oil Notice Do not add too much oil Keep the oil level between the ADD and FULL marks on the dipstick Under normal engine operation the engine oil level can increase above the FULL mark as a result of DPF regeneration A small increase in the oil level is normal If the engine has so...

Page 164: ... can appear either alone or in combination with other American Petroleum Institute API designations such as API CJ 4 SL These letters show API levels of quality Notice Use only engine oils that have the designation CJ 4 for the diesel engine Failure to use the recommended oil can result in engine damage not covered by your warranty 5 18 ...

Page 165: ...Look for this on the oil container and use only those oils that display this logo Engine Oil Additives Do not add anything to the oil The recommended oils with the API service symbol are all you need for good performance and engine protection When to Change Engine Oil Vehicles Without the Engine Oil Life System Change the engine oil and filter every 15 000 miles 24 000 km or every 12 months or eve...

Page 166: ... the system must be reset Your dealer retailer has trained service people who will perform this work using genuine parts and reset the system It is also important to check the oil regularly and keep it at the proper level If the system is ever reset accidentally you must change the oil at 3 000 miles 5 000 km or 150 hours of engine operation whichever occurs first since your last oil change Rememb...

Page 167: ...il products Used oil can be a threat to the environment If you change your own oil be sure to drain all the oil from the filter before disposal Never dispose of oil by putting it in the trash pouring it on the ground into sewers or into streams or bodies of water Instead recycle it by taking it to a place that collects used oil If you have a problem properly disposing of used oil ask your dealer r...

Page 168: ...ed orange change zone replace the filter and reset the indicator To inspect the air cleaner filter remove the filter from the vehicle and lightly shake the filter to release loose dust and dirt If the filter remains caked with dirt a new filter is required To inspect or replace the filter and reset the indicator if equipped do the following 1 Remove all three screws and carefully remove the filter...

Page 169: ... cleaner filter in place when you are driving Automatic Transmission Fluid When to Check A good time to check your automatic transmission fluid level is when the engine oil is checked See your Allison Automatic Transmission Operator s Manual to find out when to change your transmission fluid and filters How to Check and What to Use The Allison Automatic Transmission Operator s Manual that came wit...

Page 170: ...d level is good reinstall the plug and be sure it is fully seated If the fluid level is low add more fluid as described in the next steps Refer to the Maintenance Schedule to determine what kind of fluid to use See Part C Recommended Fluids and Lubricants on page 6 27 How to Add Fluid To add transmission fluid do the following 1 Remove the filler plug 2 Add fluid at the filler plug hole Add only e...

Page 171: ...e for five years or 150 000 miles 240 000 km whichever occurs first if you add only DEX COOL extended life coolant The following explains your cooling system and how to add coolant when it is low If you have a problem with engine overheating see Engine Overheating on page 5 28 A 50 50 mixture of clean drinkable water and DEX COOL coolant will Give freezing protection down to 34 F 37 C Give boiling...

Page 172: ... could catch fire and you or others could be burned Use a 50 50 mixture of clean drinkable water and DEX COOL coolant Notice If you use an improper coolant mixture your engine could overheat and be badly damaged The repair cost would not be covered by your warranty Too much water in the mixture can freeze and crack the engine radiator heater core and other parts If you have to add coolant more tha...

Page 173: ... and scalding liquids to blow out and burn you badly Never turn the surge tank pressure cap even a little when the engine and radiator are hot The vehicle must be on a level surface When your engine is cold the coolant level should be at the COLD FILL mark or higher If the low coolant light comes on in the instrument panel cluster and stays on it means you are low on engine coolant See Low Coolant...

Page 174: ...river s side of the vehicle Notice Your vehicle s surge tank pressure cap is designed for use with medium duty cooling systems only If the surge tank pressure cap is not tightly installed coolant loss and possible engine damage may occur Be sure the cap is properly and tightly secured Engine Overheating You will find an engine coolant temperature warning gage as well as a low coolant warning light...

Page 175: ...t be covered by your warranty If No Steam Is Coming From Your Engine An overheat warning along with a low coolant light can indicate a serious problem See Low Coolant Warning Light on page 3 29 for more information If you get an engine overheat warning with no low coolant light but see or hear no steam the problem may not be too serious Sometimes the engine can get a little too hot when you Climb ...

Page 176: ... of the vehicle until it cools down You may decide not to lift the hood but to get service help right away Cooling System CAUTION If your vehicle has air conditioning the auxiliary electric fan under the hood can start up even when the engine is not running and can injure you Keep hands clothing and tools away from any underhood electric fan If the coolant inside the coolant surge tank is boiling ...

Page 177: ...o leak start the engine again The engine cooling fan speed should increase when idle speed is doubled by pushing the accelerator pedal down If it does not your vehicle needs service Turn off the engine Notice Using coolant other than DEX COOL may cause premature engine heater core or radiator corrosion In addition the engine coolant could require changing sooner at 30 000 miles 50 000 km or 24 mon...

Page 178: ...peed Never turn the cap when the cooling system including the coolant surge tank pressure cap is hot Wait for the cooling system and coolant surge tank pressure cap to cool if you ever have to turn the pressure cap CAUTION Adding only plain water to the cooling system can be dangerous Plain water or some other liquid such as alcohol can boil before the proper coolant mixture will The vehicle s coo...

Page 179: ...ge tank pressure cap when the cooling system including the coolant surge tank pressure cap and upper radiator hose is no longer hot Turn the pressure cap slowly counterclockwise about one full turn If you hear a hiss wait for that to stop A hiss means there is still some pressure left 2 Then keep turning the pressure cap slowly and remove it 3 Fill the coolant surge tank with the proper mixture to...

Page 180: ...How To Check Power Steering Fluid Check your power steering fluid only when the engine is warm If the engine is not warm you probably will not get an accurate reading If the fluid level is between the MIN Minimum and MAX Maximum marks you have enough If you need fluid add only enough of the proper fluid to bring it into view in the sight glass If your power steering fluid level is low this can cau...

Page 181: ... Fluid Open the cap with the washer symbol on it Add washer fluid until the tank is full The reservoir is located behind the front panel on the driver s side of the vehicle Notice When using concentrated washer fluid follow the manufacturer s instructions for adding water Do not mix water with ready to use washer fluid Water can cause the solution to freeze and damage your washer fluid tank and ot...

Page 182: ...chedule to determine when to check the brake fluid CAUTION Do not add brake fluid before you check the level If you do you could get too much brake fluid Brake fluid could spill on the hot engine and it can catch fire You could be burned and your vehicle could be damaged See Checking Brake Fluid in this section 5 36 ...

Page 183: ...ng the reservoir CAUTION With the wrong kind of fluid in the brake hydraulic system the brakes might not work well This could cause a crash Always use the proper brake fluid Notice Using the wrong fluid can badly damage brake hydraulic system parts For example just a few drops of mineral based oil such as engine oil in the brake hydraulic system can damage brake hydraulic system parts so badly tha...

Page 184: ... brake stop the brakes adjust for wear Brake Adjustment on Air Braked Vehicles Your vehicle has automatic slack adjusters Every time you make a brake stop the brakes automatically adjust for wear Slack adjusters should never be manually adjusted to correct excessive brake chamber pushrod stroke Excessive brake chamber pushrod stroke means that the brake system needs to be serviced by a qualified s...

Page 185: ...ork well together if the vehicle is to have really good braking Your vehicle was designed and tested with top quality brake parts When you replace parts of the braking system for example when the brake linings wear down and you need new ones put in be sure you get new approved replacement parts If you do not the brakes might not work properly For example if someone puts in brake linings that are w...

Page 186: ...as the original equipment linings Using aftermarket brake linings can affect braking performance pedal feel noise and lining wear Air Brake Systems If your vehicle has air brakes it is important to get rid of moisture in the system Moisture will damage the system if it is not removed daily There are two ways to do this One is automatic through the air brake vehicle s air dryer with integral automa...

Page 187: ... intervals See Scheduled Maintenance on page 6 5 for more about servicing this filter Electric Air Compressor Your vehicle might have an electric air compressor This compressor is used to run options that require pressurized air such as air horn or air seat The air compressor is used when vehicles do not have an air brake system The air supply for this system must be maintained by releasing the dr...

Page 188: ...Chassis Lubrication 5 42 ...

Page 189: ...Slack Adjuster One fitting 7 Brake Cam Roller Pins Apply engine oil 8 Front Steering Knuckles One fitting each side lower bushing Hand operated grease gun only Hand pack upper bearing 9 Front Wheel Bearings Hand pack or lubricate 10 Steering Tie Rod Ends One fitting each end 11 Spring Slip Pads Multi leaf Only Apply chassis lubricant 12 Clutch Release Bearing Cup or fitting 13 Battery Terminal exc...

Page 190: ...ies and larger lubricate with GM Part No 1051344 Wheel Bearing Lubricant 18 Rear Wheel Bearings Hand pack or lubricate 19 Rear Axle Fill to level of filler plug 20 Parking Brake Clevis Pin Apply chassis lubricant 21 Master Cylinder Fill 1 4 inch 6 mm below opening 22 Parking Brake Lever Pivot Apply chassis lubricant 23 Clutch Release Cross Shaft One fitting each Refer to Maintenance Schedule Appli...

Page 191: ...rn you and gas that can explode You can be badly hurt if you are not careful See Jump Starting on page 5 46 for tips on working around a battery without getting hurt Infrequent Usage If you drive your vehicle infrequently remove the black negative cable from each battery This will help keep the batteries from running down Extended Storage For extended storage of your vehicle remove the black negat...

Page 192: ... If the other vehicle s system is not a 12 volt system with a negative ground both vehicles can be damaged Only use vehicles with 12 volt systems with negative grounds to jump start your vehicle In diesel engine vehicles with two batteries you may not be able to get enough power from a single battery in another vehicle to start your diesel engine especially in cold weather Use the battery closest ...

Page 193: ...u will not see the batteries of your vehicle under the hood They are located in a frame mounted battery box on the passenger s side of the vehicle CAUTION Using a match near a battery can cause battery gas to explode People have been hurt doing this and some have been blinded Use a flashlight if you need more light Be sure the batteries have enough water You do not need to add water to the ACDelco...

Page 194: ... Negative will go to a heavy unpainted metal engine part or to a remote negative terminal if the vehicle has one Do not connect positive to negative or you will get a short that would damage the battery and maybe other parts too And do not connect the negative cable to the negative terminal on the dead battery because this can cause sparks 6 Connect the red positive cable to the positive terminal ...

Page 195: ...inal on the vehicle with the dead battery 9 Connect the other end of the negative cable at least 18 inches 45 cm away from the dead battery but not near engine parts that move The electrical connection is just as good there and the chance of sparks getting back to the battery is much less 10 Now start the vehicle with the good batteries and run the engine for a while If your vehicle has the high i...

Page 196: ...ine Part or Remote Negative Terminal B Good Battery or Remote Positive and Remote Negative Terminals C Dead Battery or Remote Positive Terminal To disconnect the jumper cables from both vehicles do the following 1 Disconnect the black negative cable from the vehicle that had the dead batteries 2 Disconnect the black negative cable from the vehicle with the good batteries 3 Disconnect the red posit...

Page 197: ...de Avoid driving your vehicle through deep water You should avoid driving your vehicle through deep puddles or standing water If you must drive through water that is higher than the front or rear axle see your dealer immediately afterward to have the condition of the axle lubricant checked How to Check Lubricant To get an accurate reading the vehicle should be on a level surface If the level is be...

Page 198: ... then replace the plug What to Use Refer to your Maintenance Schedule to determine what kind of lubricant to use See Part C Recommended Fluids and Lubricants on page 6 27 Cab Tilting Before You Tilt the Cab Most fluids and lubricants requiring regular checking can be accessed at the back of the cab If you need to gain access to components under the cab follow this entire procedure carefully Find a...

Page 199: ...e cab do the following 1 Locate the lever pin at the rear of the cab on the passenger s side 2 Turn the lever pin so that the tab is aligned with the slot Remove the lever pin 3 Move the primary tilt lever all the way down 5 53 ...

Page 200: ...4 Pull the secondary latch lever to release the hook from the catch at the back of the cab 5 Using the handle located at the bottom of the cab at the back tilt the cab forward 5 54 ...

Page 201: ...position could fall causing serious injury To ensure that the cab is securely locked in position and will not move the safety lock pin A must always be inserted into the cab support B when the cab is in the tilted position CAUTION Things that burn can get on hot engine parts and start a fire These include liquids like fuel oil coolant brake fluid windshield washer and other fluids and plastic or r...

Page 202: ... follow the instructions below carefully Before lowering the cab be sure all filler caps are on properly 1 Remove the safety lock pin from the cab support by turning it and pulling it out 2 Squeeze the lever on the cap support to release the detent 5 56 ...

Page 203: ...down 4 Push the primary tilt lever upward fully to lock the cab to the chassis 5 Reinstall the pin and turn it to keep the primary tilt lever from moving downward CAUTION An unsecured cab could move suddenly causing an accident or an injury Be sure the tilt cab is properly secured to the chassis before moving the vehicle 5 57 ...

Page 204: ...the bottom of the instrument panel and pull it toward you See Instrument Panel Overview on page 3 4 for more information on location of the release catch 2 Then go to the front of the vehicle and lift the panel at the center Use the prop rod to hold the panel open 3 To close the front panel remove the prop rod close the panel and push firmly on both sides to ensure that the panel is fully closed 5...

Page 205: ...rated into any new vehicle for the purpose of noise control prior to its sale or delivery to the ultimate purchaser or while it is in use or 2 The use of the vehicle after such device or element of design has been removed or rendered inoperative by any person Among those acts presumed to constitute tampering are the acts listed below Insulation Removal of the noise shields or any underhood insulat...

Page 206: ...iper blades should be inspected at least twice a year for wear or cracking See Wiper Blade Check under At Least Twice a Year on page 6 22 for more information Replacement blades come in different types and are removed in different ways Here s how to remove the wiper blade 1 Pull the windshield wiper arm away from the windshield 5 60 ...

Page 207: ...teps 1 and 2 Other Service Items Fuel Filter Your fuel filter is located in the engine compartment on the driver s side of the vehicle or along the driver s side frame rail See Fuel Filter Replacement earlier in this section for further information Also see Scheduled Maintenance on page 6 5 for recommended service intervals 5 61 ...

Page 208: ...water draining and element replacement procedure under Water in Fuel on page 5 10 Secondary Fuel Filter and Heater Your vehicle may have this fuel filter and fuel heater It is mounted on the left side of the engine It has a metal drain bowl at the bottom Occasionally check the bowl for any water or particles To check or drain the bowl shut off the engine Then push up on the spring loaded drain val...

Page 209: ...hecked If your vehicle has oil filled hubs occasionally check to see if they have enough oil You can tell if there is oil there by using the circular gage on the sight glass If there isn t clean the rubber fill plug in the center of the glass and then remove it Be careful not to allow any dirt or water to get into the oil Add enough of the recommended oil to bring it up to the level mark that you ...

Page 210: ...Your Vehicle on page 4 19 CAUTION Continued CAUTION Continued Underinflated tires pose the same danger as overloaded tires The resulting accident could cause serious injury Check all tires frequently to maintain the recommended pressure Tire pressure should be checked when your vehicle s tires are cold See Inflation Tire Pressure on page 5 65 Overinflated tires are more likely to be cut punctured ...

Page 211: ...re tire if your vehicle has one How to Check Use a good quality pocket type gage to check tire pressure You cannot tell if your vehicle s tires are properly inflated simply by looking at them Radial tires may look properly inflated even when they are underinflated Check the tire s inflation pressure when the tires are cold Cold means your vehicle has been sitting for at least three hours or driven...

Page 212: ... When It Is Time for New Tires Various factors such as maintenance temperatures driving speeds vehicle loading and road conditions influence when you need new tires Replace your tires when the tread depth is down to 1 8 of an inch 3 2 mm for the front tires or 1 16 of an inch 1 6 mm for a rear tire Also you need a new tire if You can see cord or fabric showing through the tire s rubber The tread o...

Page 213: ... vehicle performing most like it did when the tires were new Replacing less than a full set of tires can affect the braking and handling performance of your vehicle CAUTION Mixing tires could cause you to lose control while driving If you mix tires of different sizes brands or types radial and bias belted tires the vehicle may not handle properly and you could have a crash Using tires of different...

Page 214: ...eset If you notice your vehicle vibrating when driving on a smooth road your wheels may need to be balanced Tightening the Wheel Nuts CAUTION Wheel nuts that are not tight can work loose If all the nuts on a wheel come off the wheel can come off the vehicle causing a crash All wheel nuts must be properly tightened Follow the rules in this section to be sure they are This section lets you know how ...

Page 215: ... a pad at 12 o clock to center the wheel and reduce run out 2 Put the tire and rim assembly on the axle hub Install the outer rear tire and rim assembly so that its valve stem is exactly opposite the valve stem on the inner tire and rim assembly 3 Put on the wheel nuts 4 Finger tighten the nuts 5 Oil the surfaces B between the nuts C and washers A Do not oil the studs or the threads of the nut 5 6...

Page 216: ...80 lb ft 650 Y if a 10 hole stud using the following diagrams CAUTION Never use oil or grease on studs or the threads of the wheel nuts If you do the wheel nuts might come loose and the wheel could fall off causing a crash 8 Hole 10 Hole Front 10 Hole Rear 5 70 ...

Page 217: ...s hubs wheel nuts or wheels be sure to use GM original equipment parts CAUTION Rust or dirt on a wheel or on the parts to which it is fastened can make wheel nuts become loose after a time The wheel could come off and cause a crash When you change a wheel remove any rust or dirt from places where the wheel attaches to the vehicle In an emergency you can use a cloth or a paper towel to do this but ...

Page 218: ...s for replacement If you need to replace any of your wheels wheel bolts or wheel nuts replace them only with new GM original equipment parts This way you will be sure to have the right wheel wheel bolts and wheel nuts for your vehicle CAUTION A leaking wheel could fail without warning A wheel designed for tubeless tires could be leaking because it is damaged Do not use an inner tube or some other ...

Page 219: ...new GM original equipment wheel If a Tire Goes Flat It is unusual for a tire to blowout while you are driving especially if you maintain your tires properly If air goes out of a tire it is much more likely to leak out slowly But if you should ever have a blowout here are a few tips about what to expect and what to do If a front tire fails the flat tire will create a drag that pulls the vehicle tow...

Page 220: ...tire in the vehicle Few drivers of these vehicles have the necessary equipment aboard to be able to change a flat tire safely For example you would need a truck jack that can lift several thousand pounds and a torque wrench that can generate several hundred foot pounds Y of twisting force CAUTION If you try to put air back into a tire that has run flat even a tire that was extremely low on air the...

Page 221: ...ly To prevent over spray apply cleaner directly to the cleaning cloth Notice If you use abrasive cleaners when cleaning glass surfaces on your vehicle you could scratch the glass When cleaning the glass on your vehicle use only a soft cloth and glass cleaner Many cleaners contain solvents that may become concentrated in your vehicle s breathing space Before using cleaners read and adhere to all sa...

Page 222: ... soil to absorb into the paper towel until no more can be removed For solid dry soils remove as much as possible and then vacuum To clean use the following instructions 1 Saturate a lint free clean white cloth with water or club soda 2 Wring the cloth to remove excess moisture 3 Start on the outside edge of the soil and gently rub toward the center Continue cleaning using a clean area of the cloth...

Page 223: ...alter the appearance by increasing the gloss in a non uniform manner Some commercial products may increase gloss on your instrument panel The increase in gloss may cause annoying reflections in the windshield and even make it difficult to see through the windshield under certain conditions Care of Safety Belts Keep belts clean and dry CAUTION Do not bleach or dye safety belts If you do it may seve...

Page 224: ...ppearance Materials on page 5 82 Follow all manufacturers directions regarding correct product usage necessary safety precautions and appropriate disposal of any vehicle care product Rinse the vehicle well before washing and after to remove all cleaning agents completely If they are allowed to dry on the surface they could stain Dry the finish with a soft clean chamois or an all cotton towel to av...

Page 225: ...ree sap bird droppings chemicals from industrial chimneys etc can damage your vehicle s finish if they remain on painted surfaces Wash the vehicle as soon as possible If necessary use non abrasive cleaners that are marked safe for painted surfaces to remove foreign matter Exterior painted surfaces are subject to aging weather and chemical fallout that can take their toll over a period of years You...

Page 226: ...r cleaners that contain acid on aluminum or chrome plated wheels you could damage the surface of the wheel s The repairs would not be covered by your warranty Use only GM approved cleaners on aluminum or chrome plated wheels Keep the wheels clean using a soft clean cloth with mild soap and water Rinse with clean water After rinsing thoroughly dry with a soft clean towel A wax may then be applied N...

Page 227: ...er s retailer s body and paint shop Underbody Maintenance Chemicals used for ice and snow removal and dust control can collect on the underbody If these are not removed corrosion and rust can develop on the underbody parts such as fuel lines frame floor pan and exhaust system even though they have corrosion protection At least every spring flush these materials from the underbody with plain water ...

Page 228: ...ls and wire wheel covers Finish Enhancer Removes dust fingerprints and surface contaminants Spray on wipe off Description Usage Swirl Remover Polish Removes swirl marks fine scratches and other light surface contamination Cleaner Wax Removes light scratches and protects finish Foaming Tire Shine Low Gloss Cleans shines and protects in one easy step no wiping necessary Wash Wax Concentrate Medium f...

Page 229: ...Equipment Notice Do not add anything electrical to your vehicle unless you check with your dealer retailer first Some electrical equipment can damage your vehicle and the damage would not be covered by your warranty Some add on electrical equipment can keep other components from working as they should Headlamp Wiring The headlamp wiring is protected by a circuit breaker in the light switch An elec...

Page 230: ...ose high temperature material Power Windows and Other Power Options Circuit breakers in the fuse panel protect the power windows and other power accessories When the current load is too heavy the circuit breaker opens This protects the circuit until the current load returns to normal or the problem is fixed Fuses and Circuit Breakers The wiring circuits in your vehicle are protected from short cir...

Page 231: ...rument panel and lower the cover down to snap into place If you ever have a problem on the road and don t have a spare fuse you can borrow one of the correct value Just pick some feature of your vehicle that you can get along without like the radio or cigarette lighter and use its fuse if it is the value you need Remember to replace the fuse as soon as you can These fuses are non cycling do not re...

Page 232: ...Fuses Usage 1 Ignition Switch 2 Cigarette Lighter 3 Engine Control Module Ignition 1 Fuses Usage 4 Transmission Control Module Ignition Chime 5 Assembly Line Data Link Connector 5 86 ...

Page 233: ... Take Off 10 Ignition Power 11 Left Trailer Turn Lamp 12 Auxiliary Ignition ON 13 Auxiliary Battery Direct 14 Driver Side Headlamp 15 Passenger Side Headlamp Fuses Usage 16 Headlamp 17 Heated Fuel 18 Meter Transmission Control Module 19 Identification Lamp Marker Lamp Tail Lamp Lighted Mirror Illumination Lamp 20 Cool Condenser Fan Motor Cooler Compressor 21 Wiper Motor Washer Motor 22 Heated Mirr...

Page 234: ...not use maxi fuses of higher amperage than those indicated on the maxi fuse block Fuses Usage ST TURN HAZ Stoplamp Turn Signals Hazard Warning Flashers IGN SW 3 Air Conditioner Axle Chassis INT EXT LIGHTS Parking Lamps Dome Lamp Instrument Panel Lights HEAD LAMP Headlamps Daytime Running Lamps AUX WRG Auxiliary Wiring Parking Brake IGN SW 1 Ignition Switch Washer Wiper Crank Radio HYD PUMP Hydraul...

Page 235: ...ock B C Relay Block C D Relay Block D Not Shown Relay Block A Usage 1 Power Window If Equipped 2 Power Main ECU 3 High Beam 4 Lighting 5 Lighting Low High 6 Trailer Turn Signal Left Headlamp 7 Taillamp 8 Marker Lamp Tractor Only 9 Trailer Turn Signal Right Headlamp Relay Block A 5 89 ...

Page 236: ...ser If Equipped 2 Air Conditioning Compressor If Equipped 3 Heater Fan 4 Ignition Accessory 5 Ignition 1 6 Ignition 2 7 Auxiliary 8 Horn 9 Ignition 3 10 Dome Lamp If Equipped 11 Starter Cut 12 Power Take Off Control If Equipped Relay Block B 5 90 ...

Page 237: ... Engine Run 3 Daytime Running Lamps DRL Off Parking 4 Parking Lamps Daytime Running Lamps DRL 5 Fuel Filter Heated Fuel 6 Stop Lamp Relay Block D Usage 1 Neutral Medium Duty Transmission 2 Back up Lamp Reverse Medium Duty Transmission Relay Block C Relay Block D 5 91 ...

Page 238: ... label located under the hood See your dealer for more information Cooling System Engine Torque below 660 lb ft LYA LYB LYC 33 6 qt 31 8 L Engine Torque above 835 lb ft LYD LQF 35 0 qt 33 1 L Engine Oil with Filter 23 8 qt 22 5 L Additional oil is required with auxiliary oil filter systems Make sure to add enough extra oil to fill the auxiliary oil filter system For vehicles equipped with LUBERFIN...

Page 239: ...28 inch or 140 inch wheelbases or 6x4 vehicles with a 152 inch wheelbase 3 Two 50 gallon 189 L tanks Not applicable to 4X2 vehicles with 128 inch or 140 inch wheelbases and not applicable to 6x4 vehicles with a 152 inch wheelbase Rear Axle Single Speed 15040S 21 0 pt 10 0 L 19060S HPK 21060S HPP 31 0 pt 14 7 L 23090S HPT 42 5 pt 20 1 L 26105S HPA 51 0 pt 24 1 L S110 HD2 15 0 pt 7 1 L Rear Axle Tan...

Page 240: ...s 1 L when changing spin on or remote filter See the Allison Automatic Transmission Operator s Manual for fluid check and maintenance information Transmission Fluid Manual FS5406 FS6406 19 5 pt 9 2 L RT8709B 26 0 pt 12 3 L RT8908LL 28 0 pt 13 2 L All capacities are approximate When adding be sure to fill to the approximate level as recommended in this manual Recheck the fluid level after filling E...

Page 241: ... Number Air Compressor Filter Haldex Air Compressor 100696 E1 Oil Filter 943924752 Engine Air Cleaner Filter P5339303 Chassis Mounted Fuel Filter 15725783 Engine Mounted Fuel Filter 980260372 1 Haldex 2 GM part number 3 Donaldson Racor 5 95 ...

Page 242: ...Engine Drive Belt Routing Belt routing for non air conditioning option shown Dotted line shows routing for vehicles with air conditioning Isuzu 6H Diesel Engine 5 96 ...

Page 243: ...duled Maintenance Services 6 4 Using the Maintenance Schedule 6 4 Scheduled Maintenance Supplements 6 4 Scheduled Maintenance 6 5 Part B Owner Checks and Services 6 22 At Each Fuel Fill 6 22 At Least Twice a Year 6 22 At Least Once a Year 6 26 Part C Recommended Fluids and Lubricants 6 27 Part D Maintenance Record 6 29 Section 6 Maintenance Schedule 6 1 ...

Page 244: ...al are necessary to keep your vehicle in good working condition Any damage caused by failure to follow scheduled maintenance may not be covered by warranty Your Vehicle and the Environment Proper vehicle maintenance not only helps to keep your vehicle in good working condition but also helps the environment Improper vehicle maintenance can even affect the quality of the air we breathe Improper flu...

Page 245: ...tools and equipment for the job If you have any doubt have a qualified technician do the work See Doing Your Own Service Work on page 5 5 If you want to purchase service information see Service Publications Ordering Information on page 7 10 Part B Owner Checks and Services tells you what should be checked and when It also explains what you can easily do to keep your vehicle in good condition Part ...

Page 246: ...aintenance services you should have done and when to schedule them When you go to your dealer retailer for your service needs you will know that trained and supported service people will perform the work using genuine parts The proper fluids and lubricants to use are listed in Part C Make sure whoever services your vehicle uses these All parts should be replaced and all necessary repairs done befo...

Page 247: ...iles 12 000 km Check fluid levels or every 3 months whichever occurs first 1 5 Chassis lubrication service or every 6 months whichever occurs first 10 Spring to axle U bolts and shackle bolts service 15 Wheels and tires service 13 Hydraulic brake service or every 6 months whichever occurs first 6 30 Parking brake service or every 6 months whichever occurs first 7 Air brake service or every 6 month...

Page 248: ...peration whichever occurs first Steering system service 11 Front and rear suspension service 12 Spring to axle U bolts and shackle bolts service 14 Exhaust system service or every 6 months whichever occurs first 2 3 15 Wheels and tires service 13 Hydraulic brake service or every 6 months whichever occurs first 6 30 Parking brake service or every 6 months whichever occurs first 7 Air brake service ...

Page 249: ...ck air brake relay valve operation and check for leaks or every month or every 300 hours whichever occurs first Clean air brake application valve or every 3 months or every 300 hours whichever occurs first Lubricate linkage Air brake chamber service or every 2 months whichever occurs first 28 Air brake system valve service or every 3 months or every 900 hours whichever occurs first 31 Air intake s...

Page 250: ...g brake service or every 6 months whichever occurs first 7 Air brake service or every 6 months whichever occurs first 26 Air brake automatic slack adjuster service or every 500 hours whichever occurs first 27 Check air brake relay valve operation and check for leaks or every month or every 300 hours whichever occurs first Clean air brake application valve or every 3 months or every 300 hours which...

Page 251: ...the filter If vehicle is driven in dusty dirty conditions inspect filter change indicator at every engine oil change See Engine Air Cleaner Filter on page 5 21 for more information Check fluid levels or every 3 months whichever occurs first 1 5 Replace fuel filter or every 750 hours of engine operation whichever occurs first Chassis lubrication service or every 6 months whichever occurs first 10 C...

Page 252: ...rvice 3 17 Shields and underhood insulation service 3 4 18 Rear axle air shift motor service 9 Air intake system service or every 24 months whichever occurs first 3 4 20 48 000 Miles 75 000 km Lubricate U joints or every 6 months whichever occurs first 50 000 Miles 80 000 km Inspect air compressor discharge port or every 6 months or every 1 800 hours whichever occurs first 52 500 Miles 84 000 km C...

Page 253: ...nge indicator at every engine oil change See Engine Air Cleaner Filter on page 5 21 for more information Check fluid levels or every 3 months whichever occurs first 1 5 Replace fuel filter or every 750 hours of engine operation whichever occurs first Chassis lubrication service or every 6 months whichever occurs first 10 Inspect door hinge pins and bushings and replace as necessary Check restraint...

Page 254: ... test the cap and the system for proper pressure capability and inspect the condition of cooling and heater hoses and clamps Replace hoses if cracked swollen or damaged Wheels and tires service 13 Hydraulic brake service or every 6 months whichever occurs first 6 30 Parking brake service or every 6 months whichever occurs first 7 Air brake service or every 6 months whichever occurs first 26 Air br...

Page 255: ... or every 3 months whichever occurs first 1 5 Replace fuel filter or every 750 hours of engine operation whichever occurs first Steering system service 11 Front and rear suspension service 12 Spring to axle U bolts and shackle bolts service 14 Exhaust system service or every 6 months whichever occurs first 2 3 15 Wheels and tires service 13 Hydraulic brake service or every 6 months whichever occur...

Page 256: ...brake application valve or every 3 months or every 300 hours whichever occurs first Lubricate linkage Air brake chamber service or every 2 months whichever occurs first 28 90 000 Miles 144 000 km Vehicles Without Engine Oil Life System Only Change engine oil and filter or every 12 months or every 750 hours of engine operation whichever occurs first 2 33 Vehicles With Engine Oil Life System Only Ch...

Page 257: ...every 6 months whichever occurs first 7 Air brake service or every 6 months whichever occurs first 26 Air brake automatic slack adjuster service or every 500 hours whichever occurs first 27 Check air brake relay valve operation and check for leaks or every month or every 300 hours whichever occurs first Clean air brake application valve or every 3 months or every 300 hours whichever occurs first L...

Page 258: ...nd smooth operation Lubricate ball joint cap Inspect air compressor discharge port or every 6 months or every 1 800 hours whichever occurs first Trailer brake hand control valve service or every 12 months or every 3 600 hours whichever occurs first 29 150 000 Miles 240 000 km Cooling system service or every 60 months since last service whichever occurs first 2 23 Inspect engine drive belt replace ...

Page 259: ...tes and is recommended for vehicles sold in Canada 5 Check fluid level in brake master cylinder power steering pump front and rear axles transmission and hydraulic spring parking brake pump if equipped A low fluid level in the brake master cylinder can indicate worn brake linings and should be checked accordingly 6 Inspect brake lines and hoses for proper hook up binding leaks cracks chafing etc I...

Page 260: ...opshaft universal joints brake camshaft bracket slack adjusters and pedal shaft Lubricate suspension axle and steering linkage more often when operating under dusty or muddy conditions and in excessive off road use Frequently power washed vehicles will require more frequent lubrication 11 Check steering system Look for damaged loose or missing parts Inspect the steering linkage relay rod and tie r...

Page 261: ... valve lash Incorrect valve clearance will result in increased engine noise and reduced engine output 17 With the engine off and below normal operating temperature check to see that the thermostatically controlled engine cooling fan can be rotated by hand on viscous operated drives Replace as needed 18 Check shields and underhood insulation for damage or looseness Adjust or replace as needed 19 Wh...

Page 262: ...ervice Re pack upper kingpin roller bearing 26 Air brake service Inspect brake lines and hoses for proper hook up binding leaks cracks chafing etc Inspect drum brake linings for wear or cracks Inspect other brake parts at each wheel including drums wheel cylinders and piston heat shields boots and wheel speed sensor wiring Check brake pedal for excessive free play or travel or every 6 months which...

Page 263: ...fied torque values at 100 miles 160 km Thereafter tighten them 1 000 miles 1 600 km after each time the wheel is removed See Tightening the Wheel Nuts on page 5 68 31 Inspect and clean any accumulated dirt gravel or other foreign objects from the valves and valve boots as needed Using light oil lubricate brake pedal to brake application valve linkage components Check any rubber boots for cracks ho...

Page 264: ...the engine oil at the proper level can cause damage to the engine not covered by your warranty Check the engine oil level and add the proper oil if necessary See Engine Oil on page 5 16 Engine Coolant Level Check Check the engine coolant level and add DEX COOL coolant mixture if necessary See Engine Coolant on page 5 25 Windshield Washer Fluid Level Check Check the windshield washer fluid level in...

Page 265: ...arking Brake Check Park on a fairly steep hill and hold the vehicle with the parking brake only This checks holding ability See Parking Brake With Hydraulic Brakes on page 2 23 or Parking Brake With Air Brakes on page 2 24 Starter Switch Check CAUTION When you are doing this inspection the vehicle could move suddenly If the vehicle moves you or others could be injured 1 Before you start be sure yo...

Page 266: ...eded Clean the outside of the radiator and air conditioning condenser To help ensure proper operation a pressure test of the cooling system and pressure cap is recommended at least once a year Exhaust System Inspection Be alert for any changes in the sound of the exhaust system or any smell of fumes These are signs the system may be leaking Have it checked and or repaired at once See Engine Exhaus...

Page 267: ...ng flashers Have headlamp aim checked at once if beams seem improperly aimed Glass Mirrors Lamps and or Reflectors Condition Check Look for broken scratched dirty or damaged glass mirrors lamps or reflectors that could reduce the view or visibility or cause injury Replace clean or repair promptly Door Latches Check Check that doors close latch and lock tightly Check for broken damaged or missing p...

Page 268: ...ld be loosened before being flushed Engine Cover Check Check that the cab s engine cover and seal if the vehicle has one are not torn or damaged Be sure that the cover is clamped down firmly to the floor At Least Once a Year Key Lock Cylinders Service Lubricate the key lock cylinders with the lubricant specified in Part C Underbody Flushing Service At least every spring use plain water to flush an...

Page 269: ...OOL Coolant See Engine Coolant on page 5 25 Hydraulic Brake System Delco Supreme 11 Brake Fluid or equivalent DOT 3 brake fluid Usage Fluid Lubricant Windshield Washer Solvent Optikleen Washer Solvent Exhaust Brake Ball Joint Cap Lubricant High Temperature Grease GM Part No U S 1051344 in Canada 903037 or NLGI 3 consistency Power Steering System DEXRON VI Automatic Transmission Fluid Automatic Tra...

Page 270: ...hetic Axle Lubricant for Medium Duty Trucks GM Part No U S 89021675 in Canada 10953512 Usage Fluid Lubricant Rear Axle Shift Motor Lubricant Refrigerant Oil GM Part No U S 5416939 in Canada 10953496 Propshafts and Splines Wheel bearing lubricant meeting requirements of NLGI 2 Category GC or GC LB GM Part No U S 1051344 in Canada 993037 Cab Door Hinges and Latches Multi Purpose Lubricant Superlube ...

Page 271: ...rmed record the date odometer reading and who performed the service and any additional information from Owner Checks and Services on the following record pages Also you should retain all maintenance receipts Date Miles km Or Hours Serviced By Maintenance Record 6 29 ...

Page 272: ...Date Miles km Or Hours Serviced By Maintenance Record 6 30 ...

Page 273: ...Date Miles km Or Hours Serviced By Maintenance Record 6 31 ...

Page 274: ...Date Miles km Or Hours Serviced By Maintenance Record 6 32 ...

Page 275: ...amage Repair 7 6 Reporting Safety Defects 7 9 Reporting Safety Defects to the United States Government 7 9 Reporting Safety Defects to the Canadian Government 7 9 Reporting Safety Defects to General Motors 7 9 Service Publications Ordering Information 7 10 Vehicle Data Recording and Privacy 7 11 Event Data Recorders 7 11 OnStar 7 12 Navigation System 7 12 Radio Frequency Identification RFID 7 12 S...

Page 276: ...tacting a member of dealership management it appears your concern cannot be resolved by the dealership without further help contact the GM Medium Duty Truck Customer Assistance Center at 1 800 862 4389 In Canada contact GM of Canada Customer Communication Centre in Oshawa by calling 1 800 263 3777 English or 1 800 263 7854 French We encourage you to call the toll free number in order to give your ...

Page 277: ...our case will generally be heard within 40 days If you do not agree with the decision given in your case you may reject it and proceed with any other venue for relief available to you You may contact the BBB Auto Line Program using the toll free telephone number or write them at the following address BBB Auto Line Program Council of Better Business Bureaus Inc 4200 Wilson Boulevard Suite 800 Arlin...

Page 278: ... Islands 1 800 496 9994 Fax Number 313 381 0022 Canada Customer Assistance General Motors of Canada Limited Customer Communication Centre CA1 163 005 1908 Colonel Sam Drive Oshawa Ontario L1H 8P7 1 800 263 3777 English 1 800 263 7854 French 1 800 263 3830 For Text Telephone devices TTYs Roadside Assistance 1 800 268 6800 Overseas Customer Assistance Please contact the local General Motors Business...

Page 279: ...r engine warranty period to the nearest authorized GM Medium Duty dealer This service combines the efforts of trained telephone representatives with a network of GM Medium Duty truck services Call GM Medium Duty truck s Roadside Assistance at 1 800 862 4389 to reach a qualified representative who can assist you in arranging a tow to the nearest GM Medium Duty truck dealer when your vehicle is disa...

Page 280: ...of the vehicle A recycled original equipment GM part may be an acceptable choice to maintain your vehicle s originally designed appearance and safety performance however the history of these parts is not known Such parts are not covered by your GM New Vehicle Limited Warranty and any related failures are not covered by that warranty Aftermarket collision parts are also available These are made by ...

Page 281: ...rash Occurs Here is what to do if you are involved in a crash Try to relax and then check to make sure you are all right If you are uninjured make sure that no one else in your vehicle or the other vehicle is injured If there has been an injury call emergency services for help Do not leave the scene of a crash until all matters have been taken care of Move your vehicle only if its position puts yo...

Page 282: ...le If you have a question ask for an explanation Reputable shops welcome this opportunity Managing the Vehicle Damage Repair Process In the event that your vehicle requires damage repairs GM recommends that you take an active role in its repair If you have a pre determined repair facility of choice take your vehicle there or have it towed there Specify to the facility that any required replacement...

Page 283: ...A 400 Seventh Street SW Washington D C 20590 You can also obtain other information about motor vehicle safety from http www safercar gov Reporting Safety Defects to the Canadian Government If you live in Canada and you believe that your vehicle has a safety defect notify Transport Canada immediately in addition to notifying General Motors of Canada Limited Call them at 1 800 333 0510 or write to T...

Page 284: ... Portfolio Owner Manual and Warranty Booklet RETAIL SELL PRICE 35 00 U S plus processing fee Without Portfolio Owner Manual only RETAIL SELL PRICE 25 00 U S plus processing fee Current and Past Model Order Forms Technical Service Bulletins and Manuals are available for current and past model GM vehicles To request an order form specify year and model name of the vehicle ORDER TOLL FREE 1 800 551 4...

Page 285: ... near crash like situations such as an airbag deployment or hitting a road obstacle data that will assist in understanding how a vehicle s systems performed The EDR is designed to record data related to vehicle dynamics and safety systems for a short period of time typically 30 seconds or less The EDR in this vehicle is designed to record such data as How various systems in your vehicle were opera...

Page 286: ...d the data is not tied to a specific vehicle or vehicle owner OnStar If your vehicle has OnStar and you subscribe to the OnStar services please refer to the OnStar Terms and Conditions for information on data collection and use Navigation System If your vehicle has a navigation system use of the system may result in the storage of destinations addresses telephone numbers and other trip information...

Page 287: ...77 Chemical Paint Spotting 5 81 Cleaning Exterior Lamps Lenses 5 78 Fabric Carpet 5 76 Finish Care 5 79 Finish Damage 5 81 Appearance Care cont Instrument Panel Vinyl and Other Plastic Surfaces 5 77 Interior Cleaning 5 75 Sheet Metal Damage 5 81 Tires 5 81 Underbody Maintenance 5 81 Vehicle Care Appearance Materials 5 82 Washing Your Vehicle 5 78 Weatherstrips 5 77 Windshield and Wiper Blades 5 80...

Page 288: ...ties and Specifications 5 92 Carbon Monoxide 2 28 4 15 Care of Safety Belts 5 77 Center Console Storage Area 2 35 Center Seat 1 6 Charging System Light 3 23 Check Engine Light 3 30 Gages Warning Light 3 35 Chemical Paint Spotting 5 81 Child Restraints Child Restraint Systems 1 30 Infants and Young Children 1 26 Lower Anchors and Tethers for Children 1 32 Older Children 1 23 Securing a Child Restra...

Page 289: ... Reporting Safety Defects to the Canadian Government 7 9 Reporting Safety Defects to the United States Government 7 9 Roadside Assistance Program 7 5 Service Publications Ordering Information 7 10 D Daytime Running Lamps 3 14 Daytime Running Lamps Indicator Light 3 34 Defensive Driving 4 2 Diesel Running Out of Fuel 2 32 Diesel Engine 2 16 Engine Alarm and Automatic Shutdown 2 10 Exhaust Restricto...

Page 290: ... 5 21 Alarm and Automatic Shutdown 2 10 Change Engine Oil Light 3 32 Engine cont Check and Service Engine Soon Light 3 30 Checks Before Operating 2 13 Coolant 5 25 Coolant Heater 2 15 Coolant Temperature Gage 3 29 Diesel Engine Exhaust Brake 2 16 Drive Belt Routing 5 96 Exhaust 2 28 Exhaust Restrictor 2 13 Fan Breakage 5 6 High Idle System 2 12 Oil 5 16 Oil Life System 5 20 Overheating 5 28 Oversp...

Page 291: ...5 Primary Filter and Water Separator 5 62 Running Out of 2 32 Running Out of Fuel 5 14 Very Cold Weather Operation 5 10 Water in Fuel 5 10 Fuel cont Water in Warning Light 3 36 What Fuel to Use 5 7 Fuses Fuses and Circuit Breakers 5 84 Instrument Panel Fuse Block 5 85 Maxi Fuse Block 5 88 Relay Center 5 89 Windshield Wiper 5 83 G Gage Air Pressure 3 37 Check Gages Warning Light 3 35 Engine Coolant...

Page 292: ...2 12 Highbeam On Light 3 34 Highway Hypnosis 4 14 Hill and Mountain Roads 4 14 Horn 3 6 Hourmeter Gage 3 37 How to Wear Safety Belts Properly 1 11 Hydraulic Clutch 5 24 I Ignition Positions 2 8 Infants and Young Children Restraints 1 26 Inflation Tire Pressure 5 65 Instrument Panel Overview 3 4 Instrument Panel I P Brightness 3 15 Cluster 3 21 J Jacks Auxiliary Power 3 16 Jump Starting 5 46 K Keys...

Page 293: ...hibit Warning Indicator 3 25 Reduced Engine Power 3 34 Safety Belt Reminders 3 23 Service Transmission Warning 3 24 Light cont Traction Control System Active 3 28 Trailer Antilock Brake System Warning 3 28 Wait to Start Indicator 3 30 Water in Fuel Warning 3 36 Lights 3 13 Flash to Pass 3 8 High Low Beam Changer 3 8 On Reminder 3 14 Loading Your Vehicle 4 19 Locks Door 2 3 Loss of Control 4 11 Low...

Page 294: ...rs 2 33 Outside Heated Mirrors 2 34 Outside Manual Mirrors 2 33 N Navigation System Privacy 7 12 New Vehicle Break In 2 7 Noise Control System Tampering 5 59 O Odometer 3 22 Odometer Trip 3 22 Off Road Recovery 4 10 Oil Change Engine Oil Light 3 32 Engine 5 16 Low Oil Level Light 3 32 Pressure Gage 3 31 Oil Engine Oil Life System 5 20 Older Children Restraints 1 23 OnStar Privacy 7 12 Other Servic...

Page 295: ...vigation System 7 12 OnStar 7 12 Radio Frequency Identification 7 12 R Radio Frequency Identification RFID Privacy 7 12 Radios 3 38 Radio s 3 40 Radios Reception 3 45 Setting the Clock 3 39 Range Inhibit Warning Indicator 3 25 Rear Axle 5 51 Differential Lock Control 4 7 Shift Motor 5 52 Rear Reading Lamps 3 16 Rearview Mirrors 2 33 Reclining Seatbacks 1 3 Reduced Engine Power Light 3 34 Replaceme...

Page 296: ...terials Requirements 5 4 California Proposition 65 Warning 5 4 Doing Your Own Work 5 5 Engine Fan Breakage 5 6 Engine Soon Light 3 30 Service cont Publications Ordering Information 7 10 Transmission Warning Light 3 24 Sheet Metal Damage 5 81 Side Door Glass 2 6 Signals Turn and Lane Change 3 8 Specifications Capacities 5 92 Speedometer 3 22 Starting Diesel Engine 2 8 Steering 4 8 Steering Wheel Ti...

Page 297: ...railer Brake Hand Control Valve 4 6 Transmission Fluid Automatic 5 23 Fluid Manual 5 24 Service Warning Light 3 24 Transmission Operation Automatic 2 19 Transmission Operation Manual 2 21 Trip Odometer 3 22 Turn and Lane Change Signals 3 8 Turn Signal Multifunction Lever 3 7 Two Speed Rear Axle 2 17 U Using this Manual ii V Vehicle Control 4 3 Damage Warnings iv Loading 4 19 Symbols iv Vehicle Dat...

Page 298: ...ht 3 36 What Fuel to Use 5 7 Wheels Alignment and Tire Balance 5 68 Front Bearings with Oil Filled Hubs 5 63 Loading 5 66 Replacement 5 72 Tightening the Wheel Nuts 5 68 Windows 2 4 Manual 2 4 Passenger Side Door Glass 2 6 Power 2 5 Windshield Washer 3 10 Washer Fluid 5 35 Wiper Blade Replacement 5 60 Wiper Blades Cleaning 5 80 Wiper Fuses 5 83 Wipers 3 9 Winter Driving 4 15 Y Your Vehicle and the...

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