
Maximum Loaded Vehicle Weight:The sum of curb
weight; accessory weight; vehicle capacity weight;
and production options weight.
Normal Occupant Weight:The number of occupants
a vehicle is designed to seat multiplied by 150 pounds
(68 kg). See
Loading Your Vehicle on page 4-33.
Occupant Distribution:Designated seating positions.
Outward Facing Sidewall:The side of a asymmetrical
tire that has a particular side that faces outward
when mounted on a vehicle. The side of the tire that
contains a whitewall, bears white lettering or bears
manufacturer, brand and or model name molding that
is higher or deeper than the same moldings on the other
sidewall of the tire.
Passenger (P-Metric) Tire:A tire used on passenger
cars and some light duty trucks and multipurpose
vehicles.
Recommended In¯ation Pressure:Vehicle
manufacturer's recommended tire in¯ation pressure and
shown on the tire placard. See
In¯ation - Tire Pressure
on page 5-67andLoading Your Vehicle on page 4-33.
Radial Ply tire:A pneumatic tire in which the ply cords
that extend to the beads are laid at 90 degrees to the
centerline of the tread.Rim:A metal support for a tire and upon which the tire
beads are seated.
Sidewall:The portion of a tire between the tread and
the bead.
Speed Rating:An alphanumeric code assigned to a
tire indicating the maximum speed at which a tire
can operate.
Traction:The friction between the tire and the road
surface. The amount of grip provided.
Tread:The portion of a tire that comes into contact
with the road.
Treadwear Indicators:Narrow bands, sometimes
called ªwear bars,º that show across the tread of a tire
when only 2/32 inch of tread remains. See
When It
Is Time for New Tires on page 5-70.
UTQGS:Uniform Tire Quality Grading Standards, a tire
information system that provides consumers with
ratings for a tire's traction, temperature and treadwear.
Ratings are determined by tire manufacturers using
government testing procedures. The ratings are molded
into the sidewall of the tire. See
Uniform Tire Quality
Grading on page 5-71.
5-66

{CAUTION:
Mixing tires could cause you to lose 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. It's all right to drive with your
compact spare temporarily, it was developed
for use on your vehicle. See ªCompact
Spare Tireº in the index.
{CAUTION:
If you use bias-ply tires on your vehicle, the
wheel rim ¯anges 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.
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.
5-71

{CAUTION:
In¯ating something too much can make it
explode, and you or others could be injured.
Be sure to read the in¯ator instructions, and
in¯ate any object only to its recommended
pressure.
To use your accessory in¯ator system, do the following:
1. Turn the ignition to ACCESSORY or RUN.
2. Attach the appropriate nozzle adapter, if required,
to the end of the hose that has the pressure gage.
3. Attach that end of the hose to the object you wish
to in¯ate.
4. Remove the protective cap covering the outlet.
5. Attach the other end of the hose to the outlet.
6. Press the accessory in¯ator switch. The light in the
switch will come on to show the system is working.
If the accessory in¯ator system does not turn on or
the light does not come on, the fuse may be blown or
installed incorrectly. See
Fuses and Circuit Breakers
on page 5-101or see your dealer for service.Your accessory in¯ator will automatically shut off after
about 10 minutes. The light in the switch will blink.
After about one minute you can use the system again.
Press the switch and the indicator light will come on.
Notice:If you run the accessory in¯ator longer
than 30 minutes at a time, you could damage
the in¯ator. The repairs would not be covered by
your warranty. Run the in¯ator for short periods of
time only.
After running the accessory in¯ator for 30 minutes, wait
at least 10 minutes before restarting the accessory
in¯ator.
To turn off the in¯ator, do the following:
1. Press the switch and detach the hose, ®rst from
the in¯ated object, then from the outlet.
2. Put the protective cap back on.
3. Place the in¯ator kit tools in the pouch, and store
in the glove box.
To put the cap back on, line up the tabs at the back
of the cover and put it in place. Push down the tab to
secure the cap.
5-75

Compact Spare Tire
Although the compact spare tire was fully in¯ated when
your vehicle was new, it can lose air after a time.
Check the in¯ation pressure regularly. It should be
60 psi (420 kPa).
After installing the compact spare on your vehicle,
you should stop as soon as possible and make sure
your spare tire is correctly in¯ated. The compact spare
is made to perform well at speeds up to 65 mph
(105 km/h) for distances up to 3,000 miles (5 000 km),
so you can ®nish your trip and have your full-size
tire repaired or replaced where you want. Of course,
it's best to replace your spare with a full-size tire as soon
as you can. Your spare will last longer and be in good
shape in case you need it again.
Notice:When the compact spare is installed, don't
take your vehicle through an automatic car wash
with guide rails. The compact spare can get caught
on the rails. That can damage the tire and wheel,
and maybe other parts of your vehicle.
Don't use your compact spare on other vehicles.
And don't mix your compact spare tire or wheel with other
wheels or tires. They won't ®t. Keep your spare tire and
its wheel together.
Notice:Tire chains won't ®t your compact spare.
Using them can damage your vehicle and can
damage the chains too. Don't use tire chains on
your compact spare.
All-Wheel Drive
After installing a compact spare tire on a vehicle with
all-wheel drive you will need to drive with light to
moderate acceleration, for 10 seconds, in a straight line.
This action will allow the vehicle to detect the compact
spare tire and disable the all-wheel drive system.
The AWD DISABLE message will come on the
instrument panel cluster indicating that the all-wheel
drive system is off. You may detect a slight pull during
this time, but this is normal.
Notice:You may damage your vehicle's all-wheel
drive system if your vehicle is driven for an
extended period with a compact spare tire installed
and the all-wheel drive system in operation.
See ªAll-Wheel Drive Systemº and ªAWD Disable
Warning Messageº in the Index for more
information.
5-91

Vehicle Care/Appearance Materials
See your GM dealer for more information on purchasing
the following products.
Vehicle Care/Appearance Materials
Description Usage
Polishing Cloth
Wax-TreatedInterior and exterior
polishing cloth.
Tar and Road
Oil RemoverRemoves tar, road oil
and asphalt.
Chrome Cleaner
and PolishUse on chrome or
stainless steel.
White Sidewall
Tire CleanerRemoves soil and black
marks from whitewalls.
Vinyl CleanerCleans vinyl tops,
upholstery and
convertible tops.
Glass CleanerRemoves dirt, grime,
smoke and ®ngerprints.
Chrome and Wire
Wheel CleanerRemoves dirt and grime
from chrome wheels and
wire wheel covers.
Finish EnhancerRemoves dust,
®ngerprints, and surface
contaminants. Spray on
wipe off.
Vehicle Care/Appearance Materials
(cont'd)
Description Usage
Swirl Remover PolishRemoves swirl marks,
®ne scratches and
other light surface
contamination.
Cleaner WaxRemoves light scratches
and protects ®nish.
Foaming Tire Shine
Low GlossCleans, shines and
protects in one easy step,
no wiping necessary.
Wash Wax ConcentrateMedium foaming
shampoo. Cleans and
lightly waxes.
Biodegradable and
phosphate free.
Spot LifterQuickly and easily
removes spots and stains
from carpets, vinyl and
cloth upholstery.
Odor EliminatorOdorless spray odor
eliminator used on
fabrics, vinyl, leather
and carpet.
See your General Motors parts department for these
products. See
Recommended Fluids and Lubricants
on page 6-12.
5-99

Headlamp Wiring
The headlamp wiring is protected by an internal circuit
breaker in the instrument panel fuse panel. An electrical
overload will cause the lamps to go on and off, or in
some cases to remain off. If this happens, have
your headlamp wiring checked right away.
Windshield Wiper Fuses
The windshield wiper motor is protected by an internal
circuit breaker and a fuse. If the motor overheats due
to heavy snow, etc., the wiper will stop until the
motor cools. If the overload is caused by some electrical
problem, be sure to get it ®xed.
Power Windows and Other Power
Options
Circuit breakers in the instrument panel fuse panel
protect the power windows and other power accessories.
When the current load is too heavy, the circuit breaker
opens and closes, protecting the circuit until the
problem is ®xed.
Fuses and Circuit Breakers
The wiring circuits in your vehicle are protected from
short circuits by a combination of fuses, circuit breakers,
and fusible thermal links.
Look at the silver-colored band inside the fuse. If the
band is broken or melted, replace the fuse. Be sure you
replace a bad fuse with a new one of the identical
size and rating.
If you ever have a problem on the road and do not have
a spare fuse, you can borrow one that has the same
amperage or use one of the spare fuses in the
underhood fuse block. Just pick some feature of your
vehicle that you can get along without Ð like the radio or
cigarette lighter Ð and use its fuse, if it is the right
amperage. Replace it as soon as you can.
There are two fuse blocks in your vehicle, the instrument
panel fuse block and the underhood fuse block.
5-101

Instrument Panel Fuse Block
The instrument panel
fuse block is located to
the right of the glove
box on the end of the
instrument panel.
Pull the door open to access the instrument panel
fuse block.
Fuse Usage
SWC
BACKLIGHTSteering Wheel Radio Control
Switches (Illumination)
PCM/PASS
KEY/CLUSTERInstrument Cluster to PRNDL
Indicators
PWR MIRROR Power Remote Control Mirror Switch
CRUISECruise Control Module, Switch
and Release Switch
Blank Not Used
PCM/CRANKPowertrain Control Module (PCM),
Ignition Crank
5-102

Fuse Usage
PASS KEY PASS-Key
žIII System
PWR LOCK Power Door Locks
HTD MIRROR Heated Mirrors
RH T/LP Not Used
RR FOG LP Not Used
CIGAR/DIC/
APO FRTCigarette Lighter, DIC, Front
Auxiliary Power Outlets, Data Link
T/SIG Turn Signal Switch
PWR QTR
VENTInterior Lamp and Multifunction
Switch (Power Vent Switch),
Auto Level
FRT/WPR/
WSHRWindshield Wiper/Washer Motor
and Switch
HAZARD Hazard Switch
RR PWR SCKTRear Electric Accessory Plug
Housing
DRLDaytime Running Lamp Control
Module
LH T/LP Not Used
Fuse Usage
RR DEFOG/
HTD MIRRORRear Window Defogger Relay,
Heated Mirrors
ON STAR OnStar
ž
SIR In¯atable Restraint Control Module
HVAC
BLOWERHeater-A/C Control
MALL
CLUSTERInstrument Cluster, Body Control
Module, Electronic Level Control
(ELC) Sensor and Relay, Theft,
Door Ajar
STOP LAMP Stoplamp Switch
CLUSTER
BATTModule/Electronic Brake Control
Module/Electronic Brake Traction
Control Module (EBCM/EBTCM)
ENHANCED
EVAP/AWDEvaporative Emissions (EVAP)
Canister Vent Solenoid Valve,
All-Wheel Drive (AWD)
Blank Not Used
ELC/TRAILERELC Air Compressor and ELC
Height Sensor, Trailer Harness
CTSY LAMP Courtesy Lamp
5-103