Buying New Tires
To find out what kind and size of tires you need, look at
the Tire-Loading Information label.
The tires installed on your vehicle when it was new had
a Tire Performance Criteria Specification (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. 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,
though. It was developed for use on 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.
6-47
Uniform Tire Quality Grading
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 -- A, B, C
The traction grades, from highest to lowest, are A, B,
and C, and they 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 braking (straight ahead) traction tests and does not
include cornering (turning) traction.
Temperature -- A, B, C
The temperature grades are A (the highest), B, and C,
representing the tire’s resistance to the generation of
heat and its ability
to dissipate heat when tested under
controlled conditions on a specified indoor laboratory
test wheel. Sustained high temperature can cause the
material of the tire to degenerate and reduce tire life, and
excessive temperature can lead to sudden tire failure.
6-48
Outside of Your Vehicle ........................ 6-55
Special Problems
............................. 6-52
Stains
...................................... 6-52
Tires
....................................... 6-56
Vinyl
....................................... 6-52
Wheels
..................................... 6-56
Windshield and Wiper Blades
................... 6-54
Climate Controls
................................ 3-2
Automatic Electronic
........................... 3-2
Right Front Passenger
......................... 3- 10
SteeringWheel
............................... 3-10
Clock. Setting the
............................... 3- 11
Comfort Controls ................................ 3-2
Compact Disc Care
............................. 3-26
Compact Disc Changer. Trunk Mounted
............. 3- 18
Compact Disc Changer Errors
................... 3- 19
Loading the Magazine
......................... 3- 18
Playing a Compact Disc
........................ 3-20
Compact Disc Player
............................ 3-16
Care
....................................... 3-26
Errors
...................................... 3-1 6
Compact Spare Tire
............................. 5-33
Control of
a Vehicle .............................. 4-5
ConvenienceNet
............................... 2-53
Convex Outside Mirror
.......................... 2-52
Coolant
....................................... 6-21
Heater. Engine
............................... 2-23
SurgeTank
.................................. 5-19
Cooling System
................................ 5- 17
Cornering Lamps ............................... 2-44
Courtesy Lamps
................................ 2-45 Courtesy
Transportation
........................... 8-6
Cruise Control
................................. 2-39
Customer Assistance for Text Telephone Users
......... 8-4
Customer Assistance Information
................... 8-1
Customer Satisfaction Procedure .................... 8-2
Damage. Finish
............................... 6-57
Damage. Sheet Metal
............................ 6-56
DateDisplay
................................... 2-80
Daytime Running Lamps
......................... 2-42
Dead Battery
................................... 5-3
Defensive Driving
............................... 4-2
Defogger. Rear Window
.......................... 3-9
Defogging
..................................... 3-9
Defrosting
..................................... 3-9
Delayed Illumination
............................ 2-45
DelayedLocking
................................ 2-6
DIC
.......................................... 2-75
Dimensions. Vehicle
............................ 6-72
Distance to Destination
.......................... 2-79
Door Defects.
Reporting Safety
......................... 8-8
Dolby@ B Noise Reduction ....................... 3-15
Ajar Reminder
................................ 2-5
Central Unlocking System
....................... 2-5
Locks
....................................... 2-4
Memory Locks
........................... 2-5. 2-11
Drive Position. Automatic Transaxle
................ 2-26
Driver Information Center
........................ 2-75
DriverPosition
................................. 1-13
9-3
Second Gear. Automatic Transaxle ................. 2-26
SecurityFeedback
.............................. 2-11
Selectable
Shift ................................ 2-27
Service
........................................ 6-2
Bulletins. Ordering
........................ 8.9. 8.10
EngineSoonLight
............................ 2-71
Manuals. Ordering
........................ 8.9. 8.10
Parts Identification Label
....................... 6-59
Publications. Ordering
..................... 8.9. 8.10
Work. Doing
Your Own ......................... 6-2
Service and Appearance Care
...................... 6-1
Service and Owner Publications
............... 8.9. 8.10
Servicing Your
Air Bag-Equipped Aurora ........... 1-26
SheetMetalDamage
............................ 6-56
ShiftLever
.................................... 2-24
Shifting Automatic Transaxle
.......................... 2-24
Into Park (P)
................................. 2-28
OutofPark(P)
............................... 2-30
Selectable
................................... 2-27
Shoulder Belt Tightness Adjustment
................ 1 . 14
SignalingTurns
................................ 2-35
Skidding
...................................... 4-15
Sound Equipment. Adding
........................ 3-25
Spare Tire. Compact
............................. 5-33
Specifications and Capacities
...................... 6-70
Specifications. Engine
........................... 6-7 1
Speech Impaired. Customer Assistance ............... 8-4
Speedometer
................................... 2-63
Stains. Cleaning
................................ 6-52
SRS
......................................... 1-21 Starter Switch Check
............................ 7-16
Starting Your Engine
............................ 2-21
Steam
........................................ 5-15
Steering
...................................... 4-10
InEmergencies
............................... 4-12
Magnasteer
TM ................................ 4-10
Power
...................................... 4-10
Tips
........................................ 4-11
Wheel. Tilt
.................................. 2-34
Steering Wheel Controls
.................... 3.10. 3.23
Storage Compartments
........................... 2-52
Storage. Vehicle
................................ 6-32
Stuck: In Sand. Mud. Ice or Snow
.................. 5-34
SunWsors
.................................... 2-55
Sunroof
....................................... 2-55
Supplemental Restraint System
.................... 1-21
Surge Tank Pressure Cap
......................... 6-23
Symbols. Vehicle
.................................. v
SurgeTank. Coolant ............................. 5-19
Tachometer
.................................. 2-64
Taillamp Bulb Replacement
....................... 6-38
Temperature Button. Climate Control System
.......... 3-3
Temperature Control. Passenger
................... 3-10
Theft
......................................... 2-15
THEFTLOCK" ................................ 3-21
Thermostat
.................................... 6-25
Third Gear. Automatic Transaxle
................... 2-26
TapePlayerCare
............................... 3-25
TheaterDimming
............................... 2-45
9-10
.
Tilt Steering Wheel ............................. 2-34
Time. Setting the
............................... 3-1 1
Tire-Loading Information Label
................... 4-29
Tires
......................................... 6-43
Alignment and Balance
........................ 6-49
BuyingNew
................................. 6-47
Chains
..................................... 6-50
Cleaning
.................................... 6-56
Compact Spare
............................... 5-33
Inflation
.................................... 6-44
Inflation Check
............................... 7- 14
Inspection and Rotation
........................ 6-45
Loading Your Vehicle
......................... 4-29
Pressure
.................................... 6-44
Temperature
................................. 6-48
Traction
.................................... 6-48
Treadwear
................................... 6-48
Uniform Quality Grading
....................... 6-48
Wear Indicators
.............................. 6-46
Wheel Replacement
........................... 6-49
When It’s Time
for New ....................... 6-46
TopStrap
..................................... 1-42
TorqueLock
................................... 2-30
Torque. Wheel Nut
......................... 5-30. 6-71
TowingaTrailer
................................ 4-31
Towing Your Vehicle
............................. 5-8
Traction ActiveLight
.................................. 4-9
Control System
................................ 4-8
Control System Active Light
................ 2-69. 4-9
Changing a Flat
.............................. 5-24
Control
System Warning Light
.............. 2.68. 4.9
Off Warning Light
............................. 4-9
Brakes
..................................... 4-34
Driving on Grades
............................ 4-36
Drivingwith
................................. 4-35
Engine Cooling
.............................. 4-37
Hitches
..................................... 4-34
Maintenance When Towing
..................... 4-37
Parking on Hills
.............................. 4-36
Safety Chains
................................ 4-34
Tongueweight
............................... 4-33
Total Weight on Tires
.......................... 4-34
Towing
..................................... 4-31
Turnsignals
................................. 4-36
Weight
..................................... 4-32
Transaxle Fluid. Automatic
....................... 6-18
Transaxle Fluid Life
............................. 2-77
Transmitter
.................................... 2-56
Remote Lock Control
........................... 2-9
Universal
................................... 2-56
Transportation. Courtesy
.......................... 8-6
Trip Odometer
................................. 2-63
Trunk Lock
....................................... 2-14
Release. Remote
.............................. 2-14
Security Override
............................. 2-14
Trunk Mounted Compact Disc Changer
............. 3-18
TTYUsers
..................................... 8-4
Turn Signal and Lane Change Signals
............... 2-35
Turn Signal On Chime
........................... 2-35
Trailer
9-11