GMC 2004 Yokon Denali Owner's Manual page 317

Section 5
Service ............................................................5-3
Doing Your Own Service Work .........................5-4
Adding Equipment to the Outside of Your
Vehicle ......................................................5-4
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 ............................................5-8
Filling a Portable Fuel Container .....................5-10
Checking Things Under the Hood ....................5-10
Hood Release ..............................................5-11
Engine Compartment Overview .......................5-12
Engine Oil ...................................................5-14
Engine Air Cleaner/Filter ................................5-19
Automatic Transmission Fluid .........................5-21
Engine Coolant .............................................5-24
Coolant Surge Tank Pressure Cap ..................5-27
Engine Overheating .......................................5-27
Service and Appearance Care
Cooling System ............................................5-30
Engine Fan Noise .........................................5-35
Power Steering Fluid .....................................5-36
Windshield Washer Fluid ................................5-37
Brakes ........................................................5-38
Battery ........................................................5-41
Jump Starting ...............................................5-42
All-Wheel Drive ..............................................5-47
Rear Axle .......................................................5-48
Front Axle ......................................................5-49
Bulb Replacement ..........................................5-50
Halogen Bulbs ..............................................5-50
Headlamps ..................................................5-50
Front Turn Signal, Sidemarker and Daytime
Center High-Mounted Stoplamp (CHMSL) .........5-53
Taillamps .....................................................5-53
Replacement Bulbs .......................................5-54
Windshield Wiper Blade Replacement ..............5-55
Running Lamps .........................................5-51
5-1