belt GMC YUKON DENALI 2003 Repair Manual

Traveling to Remote Areas
It makes sense to plan your trip, especially when going
to a remote area. Know the terrain and plan your
route. You are much less likely to get bad surprises.
Get accurate maps of trails and terrain. Try
to learn of
any blocked or closed roads.
It’s also a good idea to travel with at least one other
vehicle.
If something happens to one of them, the other
can help quickly.
Does your vehicle have a winch? If
so, be sure to read
the winch instructions. In a remote area, a winch
can be handy
if you get stuck. But you’ll want to know
how
to use it properly.
Getting Familiar with Off-Road Driving
It’s a good idea to practice in an area that’s safe and
close
to home before you go into the wilderness.
Off-road driving does require some new and different
driving skills. Here’s what we mean.
Tune your senses
to different kinds of signals. Your
eyes, for example, need
to constantly sweep the terrain
for unexpected obstacles. Your ears need to listen
for unusual tire or engine sounds. With your arms,
hands, feet and body, you’ll need to respond
to
vibrations and vehicle bounce. Controlling your vehicle is
the key
to successful off-road
driving. One of the best ways
to control your vehicle
is
to control your speed. Here are some things to keep
in mind.
At higher speeds:
you approach things faster and you have less time
to scan the terrain for obstacles.
you have less time to react.
you have more vehicle bounce when you drive over
obstacles.
you’ll need more distance for braking, especially
since u’re on an [-.7aved surface.
When ; u’re driving R-road, bouncing and
quick changes in direction can easily throw
you out
of position. This could cause you to
lose control and crash.
So, whether you’re
driving on or
off the road, you and your
passengers should wear safety belts.
4-1 8

Parking on Hills
You really should not park your vehicle, with a
trailer attached, on a hill.
If something goes
wrong, your rig could start to move. People
can be injured, and both your vehicle and the
trailer can be damaged.
But if you ever have to park your rig on a hill, here’s
how to do it:
1. Apply your regular brakes, but don’t shift into
2. Have someone place chocks under the trailer
3. When the wheel chocks are in place, release the
PARK
(P) yet.
wheels.
regular brakes until the chocks absorb the load.
4. Reapply the regular brakes. Then apply your
5. Release the regular brakes.
parking brake
and shift into PARK
(P).
When You Are Ready to Leave After
Parking on a Hill
1. Apply your regular brakes and hold the pedal down
while you:
start your engine,
shift into a gear, and
release the parking brake.
2. Let up on the brake pedal.
3. Drive slowly until the trailer is clear of the chocks.
4. Stop and have someone pick up and store the
chocks.
Maintenance When Trailer Towing
Your vehicle will need service more often when you’re
pulling a trailer. See the Maintenance Schedule for more
on this. Things that are especially important in trailer
operation are automatic transmission fluid (don’t overfill),
engine
oil, axle lubricant, belts, cooling system and
brake system. Each
of these is covered in this manual,
and the Index will help you find them quickly. If
you’re trailering, it’s a good idea to review these sections
before you start your trip.
Check periodically to see that all hitch nuts and bolts
are tight.
4-55

Section 5 Service and Appearance Care
Windshield Wiper Blade Replacement .............. 5.54
Tires .............................................................. 5.55
Inflation .. Tire Pressure ............................... 5-55
Tire Inspection and Rotation ........................... 5.56
When It
Is Time for New Tires ....................... 5-58
Buying New Tires
......................................... 5.58
Uniform Tire Quality Grading
.......................... 5.59
Wheel Alignment and Tire Balance
.................. 5-61
Wheel Replacement
...................................... 5.61
Tire Chains
.................................................. 5-62
If a Tire Goes Flat ........................................ 5.63
Spare Tire
................................................... 5.77
Appearance Care ............................................ 5.78
Cleaning the Inside of Your Vehicle
................. 5-78
Care of Safety Belts
...................................... 5.80
Weatherstrips
............................................... 5.80
Changing a Flat Tire
..................................... 5-63 Cleaning the Outside
of Your Vehicle
.............. 5-81
Sheet Metal Damage
.................................... 25-83
Finish Damage
............................................ 5-83
Underbody Maintenance
............................... 5-84
Chemical Paint Spotting
................................ 5-84
GM Vehicle Care/Appearance Materials
........... 5-84
Vehicle Identification .................................... ,.5-86
Service Parts Identification Label
..................... 5-86
Electrical System ............................................ 5-87
Add-on Electrical Equipment .......................... 5-87
Windshield Wiper Fuses
............................... 25-87
Power Windows
and Other Power Options ....... 5-87
Fuses and Circuit Breakers
............................ 5-87
Capacities and Specifications .......................... 5-96
Capacities and Specifications ......................... 5-96
Vehicle
Identification Number (VIN)
................ 5-86
Normal Maintenance Replacement Parts ...... 5-98
5-2

When It Is Time for New Tires
One way to tell when it’s
time for new tires is
to
check the treadwear
indicators, which will
appear when your tires have only
1/16 inch
(1.6 mm) or less of tread
remaining. Some
commercial truck tires may
not have treadwear indicators.
You need a new tire
if any of the following statements
are true:
You can see the indicators at three or more places
around the tire.
You can see cord or fabric showing through the
. The tread or sidewall is cracked, cut or snagged
The tire has a bump, bulge or split.
The tire has a puncture, cut or other damage that
tire’s rubber.
deep
enough
to show cord or fabric.
can’t be repaired well because of the size or
location
of the damage.
Buying New Tires
To find out what kind and size of tires you need, look at
the CertificationlTire label.
The tires installed on your vehicle when it was new had
a Tire Performance Criteria Specifications (TPC
Spec) number on each tire’s sidewall. When you get
new tires, get ones with that same TPC Spec number.
That way your vehicle will continue
to have tires
that are designed to give proper endurance, handling,
speed rating, traction, ride and other things during
normal service on your vehicle. If your tires have an
all-season tread design, the TPC number will be
followed by an
“MS” (for mud and snow).
If you ever replace your tires with those not having a
TPC Spec number, make sure they are the same size,
load range, speed rating and construction type (bias,
bias-belted or radial) as your original tires.
5-58

Mixing tires could cause you to iose control
while driving. If you mix tires of different sizes or types (radial and bias-belted tires), the
vehicle may not handle properly, and you
could have a crash. Using tires of different
sizes may also cause damage to your vehicle.
Be sure to use the same size and type tires on
all wheels. If your vehicle has
17 inch road
tires (those originally installed
on your vehicle)
it is all right to drive with the 16 inch spare tire
that came with your vehicle. When new, your
vehicle included a spare tire and wheel
assembly with the same overall diameter as
your vehicle’s road tires and wheels. Because
this spare tire was developed for use on your
vehicle,
it will not affect vehicle handling or
cause damage to your vehicle.
if you use bias-ply tires on your vehicle, the
wheel rim flanges could develop cracks after many miles of driving.
A tire and/or wheel
could fail suddenly, causing a crash. Use only radial-ply tires with the wheels on your vehicle
Uniform Tire Quality Grading
Quality grades can be found where applicable on the
tire sidewall between tread shoulder and maximum
section width. For example:
Treadwear 200 Traction AA Temperature A
The following information relates to the system
developed by the United States National Highway
Traffic Safety Administration, which grades tires by
treadwear, traction and temperature performance.
(This applies only to vehicles sold in the United States.)
The grades are molded on the sidewalls of most
passenger car tires. The Uniform Tire Quality Grading
system does not apply to deep tread, winter-type
snow tires, space-saver or temporary use spare tires,
tires with nominal rim diameters of
10 to 12 inches
(25 to 30 cm), or to some limited-production tires.
5-59

Wood Panels
Use a clean cloth moistened in warm, soapy water (use
mild dish washing soap).
Dry the wood immediately
with a clean cloth.
Speaker Covers
Vacuum around a speaker cover gently, so that the
speaker won’t be damaged. Clean spots with just water
and mild soap.
Glass Surfaces
Glass should be cleaned often. GM Glass Cleaner or a
liquid household glass cleaner will remove normal
tobacco smoke and dust films on interior glass. See
GM
Vehicle Care/Appearance Materials on page 5-84.
Notice: Don’t use abrasive cleaners on glass,
because they may cause scratches. Avoid placing
decals
on the inside rear window, since they
may have to be scraped
off later. If abrasive cleaners
are used on the inside of the rear window, an
electric defogger element may be damaged. Any
temporary license should not be attached across the defogger grid.
Care of Safety Belts
Keep belts clean and dry.
C - no1 .-leach or dye safety belts. If you do, it
may severely weaken them. In a crash, they
might not be able to provide adequate
protection. Clean safety belts only with mild
soap and lukewarm water.
Weatherstrips
Silicone grease on weatherstrips will make them last
longer, seal better, and not stick or squeak. Apply
silicone grease with a clean cloth at least every six
months. During very cold, damp weather more frequent
application may be required. See
Part D: Recommended
Fluids and Lubricants on page
6-15.
5-80

100,000 Miles (166 000 km)
0 Inspect spark plug wires. An Emission Control
ii Repiace spark piugs. An Emission Zoniroi Service.
0 Change automatic transmission fluid and filter if
the vehicle is mainly driven under one or more
of these conditions:
Service.
- In heavy
city traffic where the outside
temperature regularly reaches 90°F (32°C) or
higher.
- In hilly or mountainous terrain.
- When doing frequent trailer towing.
- Uses such as found in taxi, police or delivery
service.
Ll If you haven’t used your vehicle under severe service
conditions listed previously and, therefore, haven’t
changed your automatic transmission fluid, change
both the fluid and filter.
150,000 Miles (240 000 km)
0 Drain, flush and refill cooling system (or every
60 months since last service, whichever occurs first). See
Engine Codant on page 5-22 for what to me.
Inspect hoses. Clean radiator, condenser, pressure
cap and neck. Pressure test the cooling system
and pressure cap. An Emission Control Service.
0 Inspect engine accessory drive belt. An Emission
Control Service.
U Inspect Positive Crankcase Ventilation (PCV) valve.
An Emission Control Service.
6-9

Part B: Owner Checks and Services
Listed in this part are owner checks and services
which should be performed at the intervals specified
to
help ensure the safety, dependability and emission
control performance of your vehicle.
Be sure any necessary repairs are completed at once.
Whenever any fluids or lubricants are added
to your
vehicle, make sure they are the proper ones, as shown
in Part
D.
At Each Fuel Fill
It is important for you or a service station attendant to
perform these underhood checks at each fuel fill.
Engine Oil Level Check
Check the engine oil level and add the proper oil if
necessary. See Engine Oil on page 5-13 for further
details.
Engine Coolant Level Check
Check the engine coolant level and add DEX-COOL@
coolant mixture
if necessary. See Engine Coolant
on page 5-22 for further details.
Windshield Washer Fluid Level Check
Check the windshield washer fluid level in the windshield
washer tank and add the proper fluid
if necessary.
See Windshield Washer Fluid
on page 5-34 for further
details.
At Least Once a Month
Tire Inflation Check
Make sure tries are inflated to the correct pressures.
Don’t forget
to check your spare tire. See Tires on
page 5-55 for further details.
Cassette Tape Player Service
Clean cassette tape player. Cleaning should be done
every
50 hours of tape play. See Audio System(s)
on page 3-58 for further details.
At Least Twice a Year
Restraint System Check
Make sure the safety belt reminder light and all your
belts, buckles, latch plates, retractors and anchorages
are working properly. Look for any other loose or
damaged safety belt system parts. If you see anything
that might keep a safety belt system from doing its
job, have it repaired. Have any torn or frayed safety belts
replaced.
6-1 0

Accessory Power Outlets ................................. 3-17
Adding Washer Fluid
....................................... 5-35
Additional Program Information
........................... 7-8
Additives, Fuel
................................................. 5-6
Add-on Electrical Equipment
............................ 5-87
Adjusting the Speakers (Balance/Fade)
.......... 3-63
Passenger Status Indicator
........................... 3-32
Readiness Light
.......................................... 3-31
Air Bag Systems
..................................... 1-72, 1-77
Vehicle
................................................... 1-85
How Does an Air Bag Restrain? .................... 1-78
Passenger Sensing System
........................... 1-81
Servicing Your Air Bag-Equipped Vehicle
......... 1-85
What Makes an Air Bag Inflate?
.................... 1-78
What Will You See After an Air Bag Inflates?
...... 1-79
Where Are the Air Bags?
.............................. 1-74
Air Cleaner/Filter, Engine
................................. 5-1 7
Air Conditioning
.............................................. 3-23
All Overseas Locations
...................................... 7-4
All-Wheel Drive
............................................... 5-46
Aluminum Wheels
........................................... 5-83
AM
............................................................... 3-87
Antenna, Fixed Mast
....................................... 3-89
Antenna, XMTM Satellite Radio System
............... 3-89
Adjustable
Throttle and Brake Pedal
.................. 2-20
Air Bag
Adding Equipment
to Your Air Bag-Equipped
When Should an
Air Bag Inflate? ................... 1-77 Anti-lock Brake System
... 4-7
Appearance Care
............................................ 5-78
Care of Safety Belts
.................................... 5-80
.......................
Anti-Lock Brake. System Warning Light .......... 3-35
Chemica! Paint Spcltting ............................... 5-84
Cleaning the Inside of Your Vehicle ................ 5-78
Cleaning the Outside of Your Vehicle
.............. 5-81
Finish Damage
............................................ 5-83
GM Vehicle Care/Appearance Materials
.......... 5-84
Sheet Metal Damage
................................... 5-83
Underbody Maintenance
... ............. 5-84
Weatherstrips
...................... ............. 5-80
Ashtrays
........................................................ 3-18
Audio Output
.................................................. 3-78
Audio System(s)
............................................. 3-58
Audio Systems Audio Steering Wheel Controls
...................... 3-86
Care of Your Cassette Tape Player
................ 3-87
Care of Your CD and DVD Player
.................. 3-89
Care of Your CD Changer
............................ 3-88
Care of Your CDs and DVDs
........................ 3-88
CD Changer
............................................... 3-83
Fixed Mast Antenna
..................................... 3-89
Radio with Cassette and CD
......................... 3-59
Rear Seat Audio (RSA)
................................ 3-81
Setting the Time
.......................................... 3-58
Theft-Deterrent Feature
................................ 3-85
Understanding Radio Reception
..................... 3-87
XMTM Satellite Radio Antenna System
............ 3-89
Automatic Climate Control System
..................... 3-19
1

Automatic Headlamp System ............................ 3-1 4
Automatic Level Control
................................... 4-46
Automatic Transmission Fluid
.......................................................... 5-20
Operation
................................................... 2-22
Automatic Transmission Check
.......................... 6-1 1
Automatic Transmission Shift Lock Control
System Check
............................................. 6-12
AutorideTM
................................................. 4-46
B
Backing Up .................................................... 4-54
Battery
.......................................................... 5-39
Battery Replacement
......................................... 2-6
Battery Run-Down Protection
............................ 3-1 7
Before You Drive
............................................ 3-72
Bench Seat
.................................................... 1-17
Bench Seat Split (50/50)
.................................. 1-1 1
Bench Seat, Split (60/40)
................................... 1-9
Body Lubrication Service
.................................. 6-12
Brake
Parking
...................................................... 2-25
System Inspection
....................................... 6-1 4
BATTERY NOT
CHARGING
............................. 3-54
Before Leaving on a Long Trip
......................... 4-34
System Warning Light
.................................. 3-34
Brake
Brake
Brake
2 Adjustment
............................................ 5-39
Fluid
.................................................... 5-36
Pedal. Throttle
....................................... 2-20 Brake Pedal Travel
......................................... 5-39
Brake Wear
................................................... 5-38
Brakes
.......................................................... 5-36
Braking
........................................................... 4-6
Braking in Emergencies
..................................... 4-8
Break-in, New Vehicle
..................................... 2-18
Bucket Seats, Rear
......................................... 1-22
Bulb Replacement
........................................... 5-49
Center High-Mounted Stoplamp (CHMSL)
........ 5-52
Front Turn Signal, Sidemarker and Daytime
Halogen Bulbs
............................................ 5-49
Headlamps
................................................. 5-49
Replacement Bulbs
...................... ........ 5-53
Taillamps
........................................ .... 5-52
Buying New Tires
....................................... 5-58
Running Lamps
........................................ 5-50
C
California Fuel ................................. .......... 5-6
Canada
........................................................... 7-4
Canadian Owners
................................................ ii
Canadian Roadside Assistance ........................... 7-7
Capacities and Specifications ............................ 5-96
Carbon Monoxide
................... 4-37, 4-47, 2.13, 2-29
Care
of
Safety Belts ............................. .... 5-80
Care
of Your
Cassette Tape Player
............................... 3-87
CD and DVD Player .................................... 3-89