GMC 2005 Sierra Denali, Owner'S Manual, Page: 273 / 428

Service ............................................................5-3
Doing Your Own Service Work .........................5-4
Adding Equipment to the Outside of Your
Vehicle ......................................................5-5
Fuel ................................................................5-5
Gasoline Octane ............................................5-5
Gasoline Specifications ....................................5-5
California Fuel ...............................................5-6
Additives .......................................................5-6
Fuels in Foreign Countries ...............................5-7
Filling Your Tank ............................................5-7
Filling a Portable Fuel Container .......................5-9
Checking Things Under the Hood ....................5-10
Hood Release ..............................................5-10
Engine Compartment Overview .......................5-12
Engine Oil ...................................................5-14
Engine Oil Life System ..................................5-17
Engine Air Cleaner/Filter ................................5-19
Automatic Transmission Fluid .........................5-21
Engine Coolant .............................................5-24
Coolant Surge Tank Pressure Cap ..................5-26
Engine Overheating .......................................5-26
Overheated Engine Protection Operating Mode ...5-28
Cooling System ............................................5-29
Engine Fan Noise .........................................5-34
Power Steering Fluid .....................................5-34
Windshield Washer Fluid ................................5-36
Brakes ........................................................5-37
Battery ........................................................5-40
Jump Starting ...............................................5-41
All-Wheel Drive ..............................................5-46
Rear Axle .......................................................5-47
Front Axle ......................................................5-48
Bulb Replacement ..........................................5-49
Halogen Bulbs ..............................................5-49
Headlamps ..................................................5-49
Front Turn Signal, Sidemarker and Daytime
Running Lamps .........................................5-50
Center High-Mounted Stoplamp (CHMSL) and
Cargo Lamp .............................................5-51
Taillamps .....................................................5-53
Replacement Bulbs .......................................5-54
Windshield Wiper Blade Replacement ..............5-55
Tires ..............................................................5-56
Tire Sidewall Labelling ...................................5-57
Tire Terminology and Definitions .....................5-60
Inflation - Tire Pressure .................................5-62
Tire Inspection and Rotation ...........................5-63
When It Is Time for New Tires .......................5-65
Buying New Tires .........................................5-66
Uniform Tire Quality Grading ..........................5-67
Section 5 Service and Appearance Care
5-1