GMC Sierra Denali 2006, Owner'S Manual, Page: 281 / 438

Service ............................................................5-3
Accessories and Modifications ..........................5-3
California Proposition 65 Warning .....................5-3
Doing Your Own Service Work .........................5-4
Adding Equipment to the Outside of
Your Vehicle ..............................................5-4
Fuel ................................................................5-4
Gasoline Octane ............................................5-4
Gasoline Specifications ....................................5-5
California Fuel ...............................................5-5
Additives .......................................................5-5
Fuels in Foreign Countries ...............................5-6
Filling the Tank ..............................................5-6
Filling a Portable Fuel Container .......................5-8
Checking Things Under the Hood .....................5-8
Hood Release ................................................5-9
Engine Compartment Overview .......................5-10
Engine Oil ...................................................5-12
Engine Oil Life System ..................................5-15
Engine Air Cleaner/Filter ................................5-17
Automatic Transmission Fluid .........................5-19
Engine Coolant .............................................5-22
Coolant Surge Tank Pressure Cap ..................5-25
Engine Overheating .......................................5-25
Overheated Engine Protection Operating Mode ...5-28
Cooling System ............................................5-28
Engine Fan Noise .........................................5-33
Power Steering Fluid .....................................5-33
Windshield Washer Fluid ................................5-34
Brakes ........................................................5-35
Battery ........................................................5-39
Jump Starting ...............................................5-40
All-Wheel Drive ..............................................5-44
Rear Axle .......................................................5-45
Front Axle ......................................................5-46
Bulb Replacement ..........................................5-47
Halogen Bulbs ..............................................5-47
Headlamps ..................................................5-47
Front Turn Signal, Sidemarker and
Daytime Running Lamps .............................5-48
Center High-Mounted Stoplamp (CHMSL)
and Cargo Lamp .......................................5-50
Taillamps, Turn Signal, Stoplamps and
Back-up Lamps .........................................5-51
Replacement Bulbs .......................................5-52
Windshield Wiper Blade Replacement ..............5-52
Tires ..............................................................5-54
Tire Sidewall Labeling ...................................5-55
Tire Terminology and Definitions .....................5-58
Inflation - Tire Pressure .................................5-61
Section 5 Service and Appearance Care
5-1