
6-32 Brake Wear
Your vehicle has front disc brakes and rear drum 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 firmly).
CAUTION:
The brake wear warning sound means that soon
your brakes won't 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 first 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 specifications.
Your rear drum brakes don't have wear indicators, but if
you ever hear a rear brake rubbing noise, have the rear
brake linings inspected immediately. Also, the rear
brake drums should be removed and inspected each time
the tires are removed for rotation or changing. When
you have the front brake pads replaced, have the rear
brakes inspected, too.
Brake linings should always be replaced as complete
axle sets.
See ªBrake System Inspectionº in Section 7
of this manual under Part C ªPeriodic
Maintenance Inspections.º

6-48 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.
While the tires available on General Motors passenger
cars and light trucks may vary with respect to these
grades, they must also conform to federal safety
requirements and additional General Motors Tire
Performance Criteria (TPC) standards.Treadwear
The treadwear grade is a comparative rating based on
the wear rate of the tire when tested under controlled
conditions on a specified government test course.
For example, a tire graded 150 would wear one and a
half (1 1/2) times as well on the government course
as a tire graded 100. The relative performance of tires
depends upon the actual conditions of their use,
however, and may depart significantly from the norm
due to variations in driving habits, service practices and
differences in road characteristics and climate.
Traction
-- AA, A, B, C
The traction grades, from highest to lowest, are AA, A,
B, and C. Those grades represent the tire's ability to
stop on wet pavement as measured under controlled
conditions on specified government test surfaces of
asphalt and concrete. A tire marked C may have poor
traction performance. Warning: The traction grade
assigned to this tire is based on straight
-ahead braking
traction tests, and does not include acceleration,
cornering, hydroplaning, or peak traction characteristics.

6-63 Instrument Panel Fuse Block
The fuse block access door
is on the instrument panel
above the hood release
lever on the driver's side
of the vehicle.
You can remove the cover by turning the
fastener counterclockwise.
You can remove fuses with a fuse extractor. The fuse
extractor is mounted to the fuse block access door.
To remove fuses if you don't have a fuse extractor, hold
the end of the fuse between your thumb and index finger
and pull straight out.Be sure to use the correct fuse. If you ever have a
problem on the road and don't have a spare fuse, you
can borrow one of the same fuse rating. Just pick
some feature of your vehicle that you can get along
without
-- like the radio or cigarette lighter -- and
use its fuse, if it is of the same fuse rating you need.
Replace it as soon as you can.

6-64
POSITION NAME CIRCUITS PROTECTED
1. STOP Center High Mounted Stop Lamp, Stoplamps
2. HTD MIR Electric Heated Mirrors
3. CTSY Courtesy Lamps, Dome/RDG Lamps, Vanity Mirrors, Power Mirrors
4. GAUGES Instrument Panel Cluster, Daytime Running Lamp Relay, Daytime
Running Lamp Module, Headlamp Switch, Keyless Entry
Illumination, Low Coolant Module, CHIME Module, DRAB Module
5. HAZARD Hazard Lamps/CHIME Module
6. CRUISE Cruise Control
7. PWR AUX Auxiliary Power Outlet, DLC
8. CRANK Not Used
9. PARK LPS License Plate Lamp, Parking Lamps, Taillamps, Front Sidemarkers,
Glove Box Ashtray
10. AIR BAGS Air Bags
11. WIPER Wiper Motor, Washer Pump
12.
HTR
-A/CA/C, A/C Blower, High Blower Relay, Heated Mirror
13. CIG LTR Cigarette Lighter

6-66 Engine Compartment Fuse Block
The fuse block is in the engine compartment on the
driver's side of the vehicle.
NAME CIRCUITS PROTECTED
SPARE Spare Fuse
A.I.R. Air Pump
BLOWER Front Blower Motor
ABS Electronic Brake Control Module
IGN B Ignition Switch
IGN A Starter Relay, Ignition Switch
BATT Instrument Panel Fuse Block
LIGHTING Instrument Panel Fuse Block,
Headlamp Switch
RH
-HDLP Right-hand Headlamp
(Export only)
LH
-HDLP Left-hand Headlamp
(Export only)
RH
-HIBM Right-hand High-beam Headlamp
(Export only)
LH
-HIBM Left-hand High-beam Headlamp
(Export only)

7-49 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.
Also look for any opened or broken air bag coverings,
and have them repaired or replaced. (The air bag system
does not need regular maintenance.)
Wiper Blade Check
Inspect wiper blades for wear or cracking. Replace blade
inserts that appear worn or damaged or that streak or
miss areas of the windshield. Also see ªWiper Blades,
Cleaningº in the Index.Spare Tire Check
At least twice a year, after the monthly inflation check
of the spare tire determines that the spare is inflated to
the correct tire inflation pressure, make sure that the
spare tire is stored securely. Push, pull, and then try to
rotate or turn the tire. If it moves, use the ratchet/wheel
wrench to tighten the cable. See ªStoring the Spare Tire
and Toolsº in the Index.
Gasoline Engine Only: Engine Air Cleaner Filter
Restriction Indicator Check
Your vehicle has an indicator located on the air cleaner
in the engine compartment that lets you know when the
air cleaner filter is dirty and needs to be changed. Check
indicator at least twice a year or when your engine oil is
changed, whichever occurs first. See ªAir Cleanerº in
the Index for more information. Inspect your air cleaner
filter restriction indicator more often if the vehicle is
used in dusty areas.

8-6
Roadside Assistance
GMC's Roadside Assistance provides stranded owners
with over
-the-phone roadside repairs, location of the
nearest GMC dealer or the following special services:
Flat Tire Change: Installation of spare tire will be
covered at no charge (customer is responsible for repair
or replacement of tire).Fuel Delivery: Delivery of enough fuel for the customer
to get to the nearest service station (up to $5.00) will
be covered.
Jump Start: No
-start situations which require a battery
jump start will be covered at no charge.
Lock Out: Replacement keys or locksmith service will
be covered at no charge if you are unable to gain entry
into your vehicle. Delivery of the replacement key will
be covered at no charge within 10 miles (16 km).
Emergency Towing Service: Towing to the nearest
GMC dealer for warranty related disablements will
be covered.
Trip Routing: Custom
-made, computerized highlighted
maps using the most direct or scenic route are provided
free of charge. Maps include points of interest and a list
of GMC dealers along the route. Also included is a list
of hotels along the route that are discounted through
affiliation with ªQuest International.º Trip Routing
is available through Roadside Assistance by calling
1
-800-GMC-8782 (462-8782). Please be prepared
to provide your Vehicle Identification Number (VIN).
Allow five working days for fulfillment.

8-7
Trip Interruption Assistance: GMC will reimburse any
reasonable trip interruption expenses (up to $500.00)
when directly associated with warranty disablement.
Trip Interruption service covers expenses such as meals
and overnight lodging if vehicle disablement occurs at
least 150 miles (240 km) from your home or rental
property. You will be required to obtain prior approval
from GMC Roadside Assistance and pay for expenses
at the time of disablement. Original receipts should
be submitted to GMC Roadside Assistance for
reimbursement. A service representative will provide
assistance when you call.
The Roadside Assistance services listed are available
to retail and retail lease customers operating 2002 GMC
light duty trucks for a period of 3 years/36,000 miles
(60 000 km). All services must be pre
-arranged by
GMC Roadside Assistance.
Over
-the-phone assistance, such as providing the
name of the closest dealer or minor technical advice,
etc., is available to all owner/operators of GMC trucks,
regardless of vehicle or mileage.
Just dial GMC Roadside Assistance at 1
-800-GMC-8782
(1
-800-462-8782, Roadside Assistance prompt) to
reach a qualified representative who can assist you.
Text telephone (TTY) users, call 1
-888-889-2438.Your Roadside Assistance representative will ask for the
following information when your call is received:
Vehicle Identification Number (VIN)
Name and home address
Telephone number and location from which you
are calling
Location, license plate number and color of your
GMC truck
Mileage of vehicle and description of problem
Roadside Assistance is available 24 hours a day,
7 days a week, 365 days a year, including weekends
and holidays. Should you have any questions about
roadside assistance, call the GMC Roadside Assistance
Center or contact your dealer.
Roadside Assistance is not part of or included in the
coverage provided by the New Vehicle Limited Warranty.
GMC reserves the right to make any changes or
discontinue the Roadside Assistance program at any
time without notification.
Canadian Roadside Assistance
Vehicles purchased in Canada have an extensive
Roadside Assistance program accessible from anywhere
in Canada or the United States. Please refer to the
Warranty and Owner Assistance Information book or
call 1
-800-268-6800 for emergency services.