Page 328 of 398

10-62 Vehicle Care
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 25 to 30 cm
(10 to 12 inches), 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 (1.5) 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.
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Page 387 of 398

INDEX i-1
A
Accessories andModifications . . . . . . . . . . . . . . . . . 10-3
Accessory Power . . . . . . . . . . . . . . 9-29
Add-On Electrical Equipment . . . . . . . . . . . . . . . . . . . 9-61
Adding Equipment to the
Airbag-Equipped Vehicle . . . . . 3-40
Adjustments Lumbar, Front Seats . . . . . . . . . . . 3-5
Air Cleaner/Filter, Engine . . . . . 10-12
Air Filter, Passenger
Compartment . . . . . . . . . . . . . . . . . 8-9
Air Vents . . . . . . . . . . . . . . . . . . . . . . . 8-9
Airbag System Check . . . . . . . . . . . . . . . . . . . . . . . . 3-41
How Does an Airbag
Restrain? . . . . . . . . . . . . . . . . . . . 3-31
Passenger Sensing System . . . . . . . . . . . . . . . . . . . . . . 3-34
What Makes an Airbag Inflate? . . . . . . . . . . . . . . . . . . . . . . 3-31 Airbag System (cont.)
What Will You See After
an Airbag Inflates? . . . . . . . . . . 3-32
When Should an Airbag
Inflate? . . . . . . . . . . . . . . . . . . . . . . 3-29
Where Are the Airbags? . . . . . . 3-27
Airbags Adding Equipment to theVehicle . . . . . . . . . . . . . . . . . . . . . . 3-40
Passenger Status Indicator . . . 5-14
Readiness Light . . . . . . . . . . . . . . 5-13
Servicing Airbag-Equipped Vehicles . . . . . . . . . . . . . . . . . . . . . 3-39
System Check . . . . . . . . . . . . . . . . 3-25
Alarm System Anti-Theft . . . . . . . . . . . . . . . . . . . . . . 2-9
All-Wheel Drive . . . . . . . . . 10-26, 9-38 Light . . . . . . . . . . . . . . . . . . . . . . . . . . 5-19
AM-FM Radio . . . . . . . . . . . . . . . . . . . 7-4
Antenna Satellite Radio . . . . . . . . . . . . . . . . 7-11
Anti-Theft Alarm System . . . . . . . . . . . . . . . . . 2-9
Antilock Brake System (ABS) . . . . . . . . . . . . . . . . 9-38
Warning Light . . . . . . . . . . . . . . . . . 5-19 Appearance Care
Exterior . . . . . . . . . . . . . . . . . . . . . 10-82
Interior . . . . . . . . . . . . . . . . . . . . . . 10-86
Armrest Stoarge . . . . . . . . . . . . . . . . 4-2
Assistance Program, Roadside . . . . . . . . . . . . . . . . . . . . . 13-6
Audio Players . . . . . . . . . . . . . . . . . 7-11
CD . . . . . . . . . . . . . . . . . . . . . . . . . . . 7-11
MP3 . . . . . . . . . . . . . . . . . . . . . . . . . . 7-13
Audio System Fixed Mast Antenna . . . . . . . . . . 7-11
Radio Reception . . . . . . . . . . . . . . 7-10
Theft-Deterrent Feature . . . . . . . . 7-2
Automatic Door Locks . . . . . . . . . . . . . . . . . . . . 2-7
Headlamp System . . . . . . . . . . . . . 6-3
Automatic Climate Control System . . . . . . . . . . . . . . . . . . . . . . . . 8-5
Automatic Transmission . . . . . . . 9-35 Fluid . . . . . . . . . . . . . . . . . . . . . . . . 10-12
Manual Mode . . . . . . . . . . . . . . . . . 9-37
Shiftlock Control SystemCheck . . . . . . . . . . . . . . . . . . . . . 10-28
Auxiliary Devices . . . . . . . . . . . . . . 7-17
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Page 389 of 398

INDEX i-3
CleaningExterior Care . . . . . . . . . . . . . . . 10-82
Interior Care . . . . . . . . . . . . . . . . 10-86
Climate Control Systems . . . . . . . 8-1 Automatic . . . . . . . . . . . . . . . . . . . . . . 8-5
Clock . . . . . . . . . . . . . . . . . . . . . . . . . . . 5-8
Cluster, IP . . . . . . . . . . . . . . . . . . . . . 5-10
Collision Damage Repair . . . . . 13-10
Compact Spare Tire . . . . . . . . . . 10-73
Compass . . . . . . . . . . . . . . . . . . . . . . . 5-5
Compass Messages . . . . . . . . . . . 5-31
Control of a Vehicle . . . . . . . . . . . . . 9-4
Convenience Net . . . . . . . . . . . . . . . 4-4
Convex Mirrors . . . . . . . . . . . . . . . . 2-12
Coolant Engine . . . . . . . . . . . . . . . . . . . . . . 10-15
Engine Temperature
Warning Light . . . . . . . . . . . . . . . 5-21
Cooling System . . . . . . . . . . . . . . . 10-14 Engine Messages . . . . . . . . . . . . 5-32
Courtesy Transportation
Program . . . . . . . . . . . . . . . . . . . . . . 13-8
Covers Cargo . . . . . . . . . . . . . . . . . . . . . . . . . . 4-3 Cruise Control . . . . . . . . . . . . . . . . . 9-42
Light . . . . . . . . . . . . . . . . . . . . . . . . . . 5-25
Messages . . . . . . . . . . . . . . . . . . . . 5-32
Cupholders . . . . . . . . . . . . . . . . . . . . . 4-1
Customer Assistance . . . . . . . . . . 13-4 Offices . . . . . . . . . . . . . . . . . . . . . . . . 13-4
Text Telephone (TTY)Users . . . . . . . . . . . . . . . . . . . . . . . 13-4
Customer Information Service PublicationsOrdering Information . . . . . . 13-12
Customer Satisfaction Procedure . . . . . . . . . . . . . . . . . . . . 13-1
D
Damage Repair, Collision . . . . . 13-10
Danger, Warnings, andCautions . . . . . . . . . . . . . . . . . . . . . . . . iv
Data Recorders, Event . . . . . . . 13-15
Daytime Running Lamps (DRL) . . . . . . . . . . . . . . . . . . 6-2
Defensive Driving . . . . . . . . . . . . . . . 9-3
Delayed Locking . . . . . . . . . . . . . . . . 2-7
Devices, Auxiliary . . . . . . . . . . . . . 7-17
Dome Lamps . . . . . . . . . . . . . . . . . . . 6-5 Door
Ajar Light . . . . . . . . . . . . . . . . . . . . . 5-25
Ajar Messages . . . . . . . . . . . . . . . 5-32
Delayed Locking . . . . . . . . . . . . . . . 2-7
Locks . . . . . . . . . . . . . . . . . . . . . . . . . . 2-6
Power Locks . . . . . . . . . . . . . . . . . . . 2-6
Drive Systems
All-Wheel Drive . . . . . . . 10-26, 9-38
Driver Behavior . . . . . . . . . . . . . . . . . 9-2
Driver Information Center (DIC) . . . . . . . . . . . . . . . . . 5-25
Driving Characteristics andTowing Tips . . . . . . . . . . . . . . . . . 9-53
Defensive . . . . . . . . . . . . . . . . . . . . . . 9-3
Drunk . . . . . . . . . . . . . . . . . . . . . . . . . . 9-3
Environment . . . . . . . . . . . . . . . . . . . 9-2
Highway Hypnosis . . . . . . . . . . . . 9-18
Hill and Mountain Roads . . . . . . 9-19
If the Vehicle is Stuck . . . . . . . . . 9-22
Loss of Control . . . . . . . . . . . . . . . . 9-7
Off-Road . . . . . . . . . . . . . . . . . . . . . . 9-8
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