
FusesUsage
8 Outside Rearview
Mirrors, Audio
System, Main Body
Engine Control
Unit (ECU), Clock,
Brake Transmission
Shift Interlock
9 Empty
10 Empty
11 Airbag System,
Multiport Fuel
Injection System/
Sequential Multiport
Fuel Injection
System, Front
Passenger Occupant
Classification
System
12 Gages and Meters
13 Air Conditioning
System, Rear
Window Defogger
14 Windshield Wipers
15 Rear Window WipersFuses Usage
16 Windshield Washer
17 Main Body ECU,
Electric Power
Steering, Electric
Cooling Fans,
Brake Transmission
Shift Interlock,
Antilock Braking
System (ABS),
Multiport Fuel
Injection System/
Sequential Multiport
Fuel Injection
System, Tire
Pressure Monitoring
System (TPMS),
Vehicle Stability
Control System
18 Back-up Lamps,
Charging System,
Rear Window
Defogger
19 Onboard Diagnosis
SystemFuses
Usage
20 Stoplamps, Center
High-Mounted
Stoplamps (CHMSL),
ABS, Vehicle
Stability Control
System, Multiport
Fuel Injection
System/Sequential
Multiport Fuel
Injection System,
Brake Transmission
Shift Interlock
21 Power Door Lock
System
22 Outside Rearview
Mirrors, Audio
System, Main Body
ECU, Clock, Brake
Transmission Shift
Interlock, Cigarette
Lighter
23 All-Wheel Drive
System
24 Front Foglamps
9-42 Vehicle Care

FusesUsage
25 Ignition, Outside
Rearview Mirrors,
Audio System, Main
Body ECU, Clock,
Brake Transmission
Shift Interlock,
Cigarette Lighter
26 Rear Window
Defogger, Heated
Mirrors, Multiport
Fuel Injection
System/Sequential
Multiport Fuel
Injection System
27 Power WindowsWheels and Tires
Tires
Your new vehicle comes
with high-quality tires made
by a leading tire manufacturer.
If you ever have questions about
your tire warranty and where to
obtain service, see your vehicle
Warranty booklet for details.
For additional information refer
to the tire manufacturer.
{CAUTION
Poorly maintained and improperly
used tires are dangerous.
•Overloading your tires can
cause overheating as a result
of too much flexing. You
could have an air-out and a
serious accident. See Vehicle
Load Limits on page 8-12 .
(Continued)
CAUTION (Continued)
•Underinflated tires pose the
same danger as overloaded
tires. The resulting accident
could cause serious injury.
Check all tires frequently to
maintain the recommended
pressure. Tire pressure
should be checked when
your tires are cold. See Tire
Pressure on page 9-49 .
•Overinflated tires are more
likely to be cut, punctured
or broken by a sudden
impact — such as when you
hit a pothole. Keep tires at
the recommended pressure.
•Worn, old tires can cause
accidents. If your tread is
badly worn, or if your tires
have been damaged,
replace them.
Vehicle Care 9-43

Bead:The tire bead contains
steel wires wrapped by steel
cords that hold the tire onto
the rim.
Bias Ply Tire
:A pneumatic
tire in which the plies are laid
at alternate angles less than
90 degrees to the centerline
of the tread.
Cold Tire Pressure
:The
amount of air pressure in a tire,
measured in pounds per square
inch (psi) or kilopascals (kPa)
before a tire has built up heat
from driving. See Tire Pressure
on page 9-49.
Curb Weight
:The weight of
a motor vehicle with standard
and optional equipment including
the maximum capacity of fuel,
oil, and coolant, but without
passengers and cargo. DOT Markings
:A code
molded into the sidewall of a
tire signifying that the tire is
in compliance with the U.S.
Department of Transportation
(DOT) motor vehicle safety
standards. The DOT code
includes the Tire Identification
Number (TIN), an alphanumeric
designator which can also
identify the tire manufacturer,
production plant, brand, and
date of production.
GVWR
:Gross Vehicle Weight
Rating. See Vehicle Load
Limits on page 8-12.
GAWR FRT
:Gross Axle
Weight Rating for the front axle.
See Vehicle Load Limits on
page 8-12.
GAWR RR
:Gross Axle
Weight Rating for the rear axle.
See Vehicle Load Limits on
page 8-12. Intended Outboard Sidewall
:The side of an asymmetrical tire,
that must always face outward
when mounted on a vehicle.
Kilopascal (kPa)
:The metric
unit for air pressure.
Light Truck (LT-Metric) Tire
:A tire used on light duty
trucks and some multipurpose
passenger vehicles.
Load Index
:An assigned
number ranging from 1 to 279
that corresponds to the load
carrying capacity of a tire.
Maximum In ation Pressure
:The maximum air pressure to
which a cold tire can be inflated.
The maximum air pressure is
molded onto the sidewall.
Maximum Load Rating
:The load rating for a tire at the
maximum permissible inflation
pressure for that tire.
Vehicle Care 9-47

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 lbs (68 kg). See Vehicle
Load Limits on page 8-12.
Occupant Distribution
:Designated seating positions.
Outward Facing Sidewall
:The
side of an 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 inflation pressure as shown
on the tire placard. See Tire
Pressure on page 9-49 and
Vehicle Load Limits on
page 8-12.
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 wear
bars, that show across the tread
of a tire when only 1/16 inch
(1.6 mm) of tread remains.
See When It Is Time for New
Tires on page 9-56.
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 9-58.
9-48 Vehicle Care

Tire Pressure Monitor
Operation
This vehicle may have a Tire
Pressure Monitor System (TPMS).
The TPMS warns the driver when a
low tire pressure condition exists.
TPMS sensors are mounted onto
each tire and wheel assembly,
excluding the spare tire and
wheel assembly.
When a low tire pressure condition
is detected, the low tire pressure
warning light, located on the
instrument panel cluster, comes on.This light also comes on for a
few seconds and then goes off when
you turn the ignition to ON/RUN.
This indicates the TPMS is
functioning properly. If the low-tire
pressure warning light comes on
while driving the vehicle, the system
may have detected a low-tire
condition. You need to stop as soon
as possible and check the tires.
The low tire pressure warning
light may come on in cool weather
when the vehicle is first started, and
then turn off as you start to drive.
This could be an early indicator that
the air pressure in the tire(s) are
getting low and need to be inflated
to the proper pressure.
A Tire and Loading Information
label, attached to the vehicle, shows
the size of the vehicle’s original
equipment tires and the correct
inflation pressure for the tires when
they are cold. See
Vehicle Load
Limits on page 8-12, for an example
of the Tire and Loading Information
label and its location on your vehicle.
Also see Tire Pressure on
page 9-49.
The vehicle’s TPMS can warn you
about a low tire pressure condition
but it does not replace normal tire
maintenance. See Tire Inspection
on page 9-54, Tire Rotation on
page 9-55 andTires on page 9-43.
9-52 Vehicle Care

TPMS Malfunction Light
The TPMS will not function properly
if one or more of the TPMS sensors
are missing or inoperable. When the
system detects a malfunction, the
low tire warning light flashes for
about one minute and then stays
on for the remainder of the ignition
cycle. The low tire warning light
comes on at each ignition cycle until
the problem is corrected. Some of
the conditions that can cause the
malfunction light to come on are:
•One of the road tires has been
replaced with the spare tire.
The spare tire does not have
a TPMS sensor. The TPMS
malfunction light and DIC
message should go off once
you re-install the road tire
containing the TPMS sensor.
•The initialization (reset) procedure
failed. See “TPMS Reset” later in
this section.
•One or more TPMS sensors
are missing or damaged.
The TPMS malfunction light
should go off when the TPMS
sensors are installed and the
sensor matching process is
performed successfully. See
your dealer/retailer for service.
•Replacement tires or wheels do
not match the vehicle’s original
equipment tires or wheels. Tires
and wheels other than those
recommended for your vehicle
could prevent the TPMS from
functioning properly. SeeBuying
New Tires on page 9-56.
•Operating electronic devices or
being near facilities using radio
wave frequencies similar to the
TPMS could cause the TPMS
sensors to malfunction.
•If tire chains are installed on the
vehicle.
•If there is a lot of snow or ice
around the wheels or wheel
housings.
•If a window tint that affects the
radio wave signals is installed.
If the TPMS is not functioning it
cannot detect or signal a low tire
condition. See your dealer/retailer for
service if the TPMS malfunction light
comes on and stays on.
Vehicle Care 9-53

TPMS Reset
The TPMS sensors and transmitters
have unique identification codes.
Anytime you replace a TPMS sensor
or transmitter the identification codes
need to be registered and the TPMS
needs to be reset (initialized). When
the system is initialized, the current
air pressure in the tires is set as the
tire pressure benchmark. The tire
pressure warning system determines
decreased air pressure by comparing
tire pressure to the benchmark
pressure stored in the TPMS.
Do not reset the TPMS without first
correcting the cause of a low-tire
condition.
To reset the system:
1. Park the vehicle at a safe placeand apply the parking brake.
Turn the engine off.
2. Turn the ignition to ACC/ACCESSORY or
LOCK/OFF. 3. Adjust the tire pressure of all the
installed tires to the specified
cold tire inflation pressure level
indicated on the Tire and Loading
Information label attached to
the vehicle.
4. Turn the ignition to ON/RUN with the engine off.
5. Press and hold the tire pressure warning reset switch until the tire
pressure warning light flashes
slowly on/off three times.
Wait for a few minutes with the
ignition in ON/RUN, and then turn
the ignition to ACC/ACCESSORY
or LOCK/OFF. If the low-tire pressure warning
light does not flash three times
while you press and hold the
reset button, the reset has failed.
Repeat the reset process. If the
reset cannot be performed, see
your dealer/retailer for service.
If you press the tire pressure reset
switch while the vehicle is moving,
the reset is not performed. If you
press the tire pressure reset switch
accidentally and initialization is
performed, adjust the tire pressure to
the specified level and perform the
reset procedure again.
Tire Inspection
We recommend that you
regularly inspect your vehicle’s
tires, including the spare tire, if
the vehicle has one, for signs of
wear or damage. See When It Is
Time for New Tires on page 9-56
for more information.
9-54 Vehicle Care

Different Size Tires and
Wheels
If you add wheels or tires that are
a different size than your original
equipment wheels and tires, this
could affect the way your vehicle
performs, including its braking,
ride and handling characteristics,
stability, and resistance to rollover.
Additionally, if your vehicle has
electronic systems such as anti-lock
brakes, traction control, and
electronic stability control, the
performance of these systems
can be affected.
SeeBuying New Tires on page 9-56
and Accessories and Modi cations
on page 9-3 for additional
information.
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
(NHTSA), 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 (UTQG) 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.
9-58 Vehicle Care