2004 GMC YUKON service indicator

For best results, use a scrubbing action, non-abrasive
cleaning cassette with pads which scrub the tape
head as the hubs of the cleaner cassette turn. The
recommended cleaning cassette is available through
your dealer.
When cleaning the cassette tape player with the
recommended non-abrasive cleaning cassette, it is
possible that the cassette may eject, because the cut
tape detection feature on your radio may recognize it as
a broken tape, in error. To prevent the cleaning
cassette from being ejected, use the following steps:
1. Turn the ignition on.
2. Turn the radio off.
3. Press and hold the TAPE DISC button for ve
seconds. READY will appear on the display and
the cassette symbol will ash for ve seconds.
4. Insert the scrubbing action cleaning cassette.
5. Eject the cleaning cassette after the manufacturer’s
recommended cleaning time.
When the cleaning cassette has been ejected, the cut
tape detection feature is active again.
You may also choose a non-scrubbing action, wet-type
cleaner which uses a cassette with a fabric belt to
clean the tape head. This type of cleaning cassette will
not eject on its own. A non-scrubbing action cleanermay not clean as thoroughly as the scrubbing type
cleaner. The use of a non-scrubbing action, dry-type
cleaning cassette is not recommended.
After you clean the player, press and hold the eject
button for ve seconds to reset the CLEAN indicator.
The radio will display --- or CLEANED to show the
indicator was reset.
Cassettes are subject to wear and the sound quality
may degrade over time. Always make sure the cassette
tape is in good condition before you have your tape
player serviced.
Care of Your CDs and DVDs
Handle discs carefully. Store them in their original cases
or other protective cases and away from direct sunlight
and dust. If the surface of a disc is soiled, dampen
a clean, soft cloth in a mild, neutral detergent solution
and clean it, wiping from the center to the edge.
Be sure never to touch the side without writing when
handling discs. Pick up discs by grasping the outer
edges or the edge of the hole and the outer edge.
3-138

Additives
To provide cleaner air, all gasolines in the United States
are now required to contain additives that will help
prevent engine and fuel system deposits from forming,
allowing your emission control system to work properly.
You should not have to add anything to your fuel.
However, some gasolines contain only the minimum
amount of additive required to meet U.S. Environmental
Protection Agency regulations. General Motors
recommends that you buy gasolines that are advertised
to help keep fuel injectors and intake valves clean. If your
vehicle experiences problems due to dirty injectors or
valves, try a different brand of gasoline.
Gasolines containing oxygenates, such as ethers and
ethanol, and reformulated gasolines may be available in
your area to contribute to clean air. General Motors
recommends that you use these gasolines, particularly if
they comply with the specications described earlier.
Notice:Your vehicle was not designed for fuel that
contains methanol. Do not use fuel containing
methanol. It can corrode metal parts in your fuel
system and also damage the plastic and rubber
parts. That damage would not be covered under
your warranty.Some gasolines that are not reformulated for low
emissions may contain an octane-enhancing additive
called methylcyclopentadienyl manganese tricarbonyl
(MMT); ask the attendant where you buy gasoline
whether the fuel contains MMT. General Motors does
not recommend the use of such gasolines. Fuels
containing MMT can reduce the life of spark plugs and
the performance of the emission control system may
be affected. The malfunction indicator lamp may turn on.
If this occurs, return to your authorized GM dealer for
service.
Fuel E-85 (85% Ethanol)
The 8th digit of your vehicle identication number (VIN)
shows the code letter or number that identies your
engine. You will nd the VIN at the top left of the
instrument panel. SeeVehicle Identication
Number (VIN) on page 5-112.
If your vehicle has the 5.3L V8 engine (VIN Code Z only),
you may use either regular unleaded gasoline or ethanol
fuel containing up to 85% ethanol (E-85); also seeFuel
on page 5-4. In all other engines, including the 5.3L V8
(VIN Code T), use only regular unleaded gasoline.
5-6

Notice:
Using the wrong uid can badly damage brake
system parts. For example, just a few drops of
mineral-based oil, such as engine oil, in your
brake system can damage brake system parts so
badly that they will have to be replaced. Do not
let someone put in the wrong kind of uid.
If you spill brake uid on your vehicle’s painted
surfaces, the paint nish can be damaged. Be
careful not to spill brake uid on your vehicle. If
you do, wash it off immediately. SeeAppearance
Care on page 5-103.
Brake Wear
Your vehicle has four-wheel disc brakes.
Disc brake pads have built-in wear indicators that make
a high-pitched warning sound when the brake pads
are worn and new pads are needed. The sound
may come and go or be heard all the time your vehicle
is moving (except when you are pushing on the
brake pedal rmly).
{CAUTION:
The brake wear warning sound means that
soon your brakes will not work well. That
could lead to an accident. When you hear the
brake wear warning sound, have your vehicle
serviced.
Notice:Continuing to drive with worn-out brake
pads could result in costly brake repair.
Some driving conditions or climates may cause a brake
squeal when the brakes are rst applied or lightly
applied. This does not mean something is wrong with
your brakes.
Properly torqued wheel nuts are necessary to help
prevent brake pulsation. When tires are rotated, inspect
brake pads for wear and evenly tighten wheel nuts in
the proper sequence to GM torque specications.
Brake linings should always be replaced as complete
axle sets.
5-43

Scheduled Maintenance
Service MaintenanceIMaintenanceII
Change engine oil and lter. Reset oil life system. SeeEngine Oil on
page 5-16.An Emission Control Service.••
Lubricate chassis components.See footnote #.••
Visually check for any leaks or damage.See footnote (j).••
Inspect engine air cleaner lter or change indicator (if equipped). If necessary,
replace lter. SeeEngine Air Cleaner/Filter on page 5-21.An Emission Control
Service. See footnote †.••
Rotate tires and check ination pressures and wear. SeeTires on page 5-63.••
Inspect brake system.See footnote (a).••
Check engine coolant and windshield washer uid levels and add uid as
needed.••
Perform any needed additional services. See “Additional Required Services” in
this section.••
Inspect suspension and steering components.See footnote (b).•
Inspect engine cooling system.See footnote (c).•
Inspect wiper blades.See footnote (d).•
Inspect restraint system components.See footnote (e).•
Lubricate body components.See footnote (f).•
Check transmission uid level and add uid as needed.•
6-5

Additional Required Services
The following services should be performed at the rst maintenance service (IorII) after the indicated miles
(kilometers) shown for each item.
Additional Required Services
Service25,000
(41 500)50,000
(83 000)75,000
(125 000)100,000
(166 000)125,000
(207 500)150,000
(240 000)
Inspect fuel system for damage or
leaks.••••••
Inspect exhaust system for loose or
damaged components.••••••
Vehicles without a lter restriction
indicator: Replace engine air
cleaner lter. SeeEngine Air
Cleaner/Filter on page 5-21.An
Emission Control Service.••••••
Change automatic transmission
uid and lter (severe service).See
footnote (h).•••
Change automatic transmission
uid and lter (normal service).•
Four-wheel drive: Change transfer
case uid.See footnote (g).•••
Inspect evaporative control system.
An Emission Control Service. See
footnotes † and (k).•••
6-6

M
Maintenance Schedule
Additional Required Services........................... 6-6
At Each Fuel Fill........................................... 6-9
At Least Once a Month.................................. 6-9
At Least Once a Year..................................6-10
Introduction.................................................. 6-2
Maintenance Footnotes.................................. 6-7
Maintenance Record....................................6-16
Maintenance Requirements............................. 6-2
Normal Maintenance Replacement Parts.........6-14
Owner Checks and Services........................... 6-9
Recommended Fluids and Lubricants.............6-12
Scheduled Maintenance................................. 6-4
Using Your................................................... 6-3
Your Vehicle and the Environment................... 6-2
Maintenance When Trailer Towing.....................4-74
Making Turns.................................................4-72
Malfunction Indicator Light................................3-51
Manual Seats................................................... 1-3
Manual Windows............................................2-16
Matching Transmitter(s) to Your Vehicle............... 2-6
Memory Seat.................................................2-64
Message
DIC Warnings and Messages........................3-70Mexico, Central America and Caribbean Islands/
Countries (Except Puerto Rico and U.S. Virgin
Islands)....................................................... 7-5
Mirrors
Automatic Dimming Rearview with Compass
and Temperature Display...........................2-46
Automatic Dimming Rearview with OnStar
®,
Compass and Temperature Display.............2-44
Manual Rearview Mirror................................2-43
Outside Automatic Dimming Mirror.................2-51
Outside Camper-Type Mirrors........................2-49
Outside Convex Mirror.................................2-52
Outside Curb View Assist Mirrors...................2-52
Outside Heated Mirrors................................2-52
Outside Manual Mirrors................................2-49
Outside Power Camper-Type.........................2-50
Outside Power Foldaway Mirrors....................2-50
Outside Power Mirrors..................................2-50
Model Reference................................................ vi
MyGMLink.com................................................ 7-3
N
New Vehicle Break-In......................................2-20
Normal Maintenance Replacement Parts............6-14
10

O
Odometer......................................................3-42
Off-Road Driving.............................................4-22
Off-Road Recovery..........................................4-19
Oil
Engine.......................................................5-16
Pressure Gage............................................3-55
OIL LIFE RESET............................................3-72
OIL PRESSURE LOW.....................................3-72
Older Children, Restraints................................1-45
Online Owner Center........................................ 7-3
OnStar
®Personal Calling.................................2-54
OnStar®Services............................................2-53
OnStar®Steering Wheel Controls......................2-54
OnStar®System.............................................2-53
OnStar®Virtual Advisor....................................2-54
Other Warning Devices...................................... 3-7
Outlet Adjustment...................................3-26, 3-33
Outside
Automatic Dimming Mirror.............................2-51
Camper-Type Mirrors....................................2-49
Convex Mirror.............................................2-52
Curb View Assist Mirrors..............................2-52
Heated Mirrors............................................2-52
Manual Mirrors............................................2-49
Power Foldaway Mirrors...............................2-50
Power Mirrors.............................................2-50
Outside Power Camper-Type Mirror...................2-50Overheated Engine Protection Operating Mode
(V8 Engines Only).......................................5-29
Owner Checks and Services.............................. 6-9
Owners, Canadian............................................... ii
Owner’s Information........................................7-13
P
Panel Doors...................................................2-14
Park (P)
Shifting Out of............................................2-41
Parking
Brake........................................................2-37
Over Things That Burn.................................2-41
Parking on Hills..............................................4-73
Park(P)
Shifting Into................................................2-38
Passenger Air Bag Indicator.....................2-46, 2-49
Passenger Air Bag Status Indicator...................3-43
PASSENGER DOOR AJAR..............................3-73
Passenger Sensing System..............................1-82
Passing.................................................4-19, 4-72
Passlock
®......................................................2-20
Personalization Button.....................................3-62
Plan Ahead When Possible................................ 7-8
Playing a Cassette Tape................................3-102
Playing a CD..............................3-90, 3-105, 3-117
Playing a Specic Loaded CD.........................3-118
Playing the Radio.................3-78, 3-82, 3-93, 3-109
11

U
Underhood Fuse Block...................................5-117
Understanding Radio Reception.......................3-137
Uniform Tire Quality Grading............................5-79
United States................................................... 7-4
Used Replacement Wheels..............................5-82
Using Cleaner on Fabric................................5-104
Using HomeLink
®...........................................2-58
Using Song List Mode...................................3-120
Using the Recovery Hooks...............................4-51
V
Vehicle
Control........................................................ 4-5
Damage Warnings........................................... iv
Loading......................................................4-56
Symbols......................................................... iv
Vehicle Data Collection and Event Data Records . 7-10
Vehicle Identication
Number (VIN)............................................5-112
Service Parts Identication Label..................5-112
Vehicle Personalization
Memory Seat..............................................2-64
Vehicle Storage..............................................5-44
Video Screen................................................3-126
Visors...........................................................2-17
Voltmeter Gage..............................................3-45
W
Warning Lights, Gages and Indicators................3-40
Warnings
DIC Warnings and Messages........................3-70
Hazard Warning Flashers............................... 3-6
Other Warning Devices.................................. 3-7
Safety and Symbols......................................... iii
Vehicle Damage.............................................. iv
Washing Your Vehicle....................................5-107
Weight Distributing Hitches and Weight
Carrying Hitches..........................................4-69
Weight of the Trailer........................................4-65
Weight of the Trailer Tongue.............................4-68
What Kind of Engine Oil to Use........................5-17
What to Add..................................................5-42
What to Do with Used Oil................................5-20
What to Use..........................5-26, 5-39, 5-40, 5-52
Wheels
Alignment and Tire Balance..........................5-80
Replacement...............................................5-81
When to Add Engine Oil..................................5-17
When to Change Engine Oil (GM Oil
Life System)...............................................5-19
When to Check..............................................5-72
When to Check and Change............................5-23
When to Check Lubricant.................................5-52
When to Check Power Steering Fluid................5-39
17