2004 GMC YUKON XL DENALI oil additives

Service............................................................5-3
Doing Your Own Service Work.........................5-3
Adding Equipment to the Outside
of Your Vehicle...........................................5-4
Fuel................................................................5-4
Gasoline Octane............................................5-4
Gasoline Speci®cations....................................5-5
California Fuel...............................................5-5
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...................................................5-13
Engine Air Cleaner/Filter................................5-18
Automatic Transmission Fluid.........................5-20
Engine Coolant.............................................5-23
Coolant Surge Tank Pressure Cap..................5-25Engine Overheating.......................................5-25
Cooling System............................................5-28
Engine Fan Noise.........................................5-33
Power Steering Fluid.....................................5-34
Windshield Washer Fluid................................5-35
Brakes........................................................5-36
Battery........................................................5-39
Jump Starting...............................................5-40
All-Wheel Drive..............................................5-45
Rear Axle.......................................................5-46
Front Axle......................................................5-47
Bulb Replacement..........................................5-48
Halogen Bulbs..............................................5-48
Headlamps..................................................5-48
Front Turn Signal, Sidemarker and
Daytime Running Lamps.............................5-49
Center High-Mounted Stoplamp (CHMSL).........5-51
Taillamps.....................................................5-51
Replacement Bulbs.......................................5-52
Section 5 Service and Appearance Care
5-1

Notice:Use only engine oil identi®ed as meeting
GM Standard GM6094M and showing the American
Petroleum Institute Certi®ed For Gasoline Engines
starburst symbol. Failure to use the recommended
oil can result in engine damage not covered by
your warranty.
GM Goodwrench
žoil meets all the requirements for
your vehicle.
If you are in an area of extreme cold, where the
temperature falls below-20ÉF (-29ÉC), it is
recommended that you use either an SAE 5W-30
synthetic oil or an SAE 0W-30 oil. Both will provide
easier cold starting and better protection for your engine
at extremely low temperatures.
Engine Oil Additives
Do not add anything to your oil. The recommended oils
with the starburst symbol that meet GM Standard
GM6094M are all you will need for good performance
and engine protection.
When to Change Engine Oil (GM Oil
Life System)
Your vehicle has a computer system that lets you know
when to change the engine oil and ®lter. This is
based on engine revolutions and engine temperature,
and not on mileage. Based on driving conditions,
the mileage at which an oil change will be indicated can
vary considerably. For the oil life system to work
properly, you must reset the system every time the oil is
changed.
When the system has calculated that oil life has been
diminished, it will indicate that an oil change is
necessary. A CHANGE ENGINE OIL message will
come on. Change your oil as soon as possible within
the next two times you stop for fuel. It is possible that, if
you are driving under the best conditions, the oil life
system may not indicate that an oil change is necessary
for over a year. However, your engine oil and ®lter
must be changed at least once a year and at this time
the system must be reset. Your dealer has GM-trained
service people who will perform this work using
genuine GM parts and reset the system. It is also
important to check your oil regularly and keep it at the
proper level.
If the system is ever reset accidentally, you must
change your oil at 3,000 miles (5 000 km) since your
last oil change. Remember to reset the oil life system
whenever the oil is changed.
5-16

ENGINE COOLANT HOT.................................3-59
Engine Oil Additives........................................5-16
ENGINE OVERHEATED..................................3-59
Entering or Exiting the Third Row Seats.............. 1-7
Entertainment System
Cleaning the Video Screen...........................3-99
DVD Distortion............................................3-97
Entry Lighting.................................................3-17
Environmental Concerns..................................4-17
Erasing HomeLink
žButtons..............................2-42
Event Data Records (EDR)................................ 7-9
Exit Lighting...................................................3-17
Express-Down Windows...................................2-15
Extender, Safety Belt.......................................1-47
Exterior Lamps...............................................3-14
F
Filter
Engine Air Cleaner......................................5-18
Finding a Program Type (PTY) Station
(RDS and XMŸ).........................................3-70
Finding a Station............................................3-67
Finish Care....................................................5-96
Finish Damage...............................................5-99
Fixed Mast Antenna........................................3-99
Flash-to-Pass................................................... 3-9
Flat Tire........................................................5-73
Flat Tire, Changing.........................................5-74Fluid
Automatic Transmission................................5-20
Power Steering...........................................5-34
Windshield Washer......................................5-35
FM Stereo.....................................................3-97
Fog Lamps....................................................3-16
Folding the Seatback.......................................1-17
Folding the Seatbacks.............................1-12, 1-22
Folding the Seatbacks (60/40 Split Bench Seat)....... 1-9
Following Distance..........................................4-59
Front Axle......................................................5-47
Frontal Air Bags.............................................1-77
Fuel............................................................... 5-4
Additives...................................................... 5-6
California Fuel.............................................. 5-5
Filling a Portable Fuel Container..................... 5-9
Filling Your Tank........................................... 5-7
Fuels in Foreign Countries.............................. 5-7
Gage.........................................................3-45
Gasoline Octane........................................... 5-4
Gasoline Speci®cations.................................. 5-5
Low Warning Light.......................................3-45
Fuel Information Button....................................3-49
FUEL LEVEL LOW.........................................3-59
Fuses
Fuses and Circuit Breakers.........................5-103
Windshield Wiper.......................................5-103
6