
(A) Temporary Use Only:The compact spare tire or
temporary use tire has a tread life of approximately
3,000 miles (5 000 km) and should not be driven
at speeds over 65 mph (105 km/h). The compact spare
tire is for emergency use when a regular road tire
has lost air and gone flat. SeeCompact Spare Tire on
page 5-67andIf a Tire Goes Flat on page 5-60.(B) Tire Ply Material:The type of cord and number
of plies in the sidewall and under the tread.
(C) Tire Identi cation Number (TIN):The Tire
Identification Number (TIN). The TIN shows the
manufacturer and plant code, tire size, and date the
tire was manufactured. The TIN is molded onto
both sides of the tire, although only one side may
have the date of manufacture.
(D) Maximum Cold In ation Load Limit:Maximum
load that can be carried and the maximum pressure
needed to support that load. SeeCompact Spare Tire
on page 5-67andLoading Your Vehicle on page 4-29.
(E) Tire In ation:The temporary use tire or compact
spare tire should be inflated to 60 psi (420 kPa).
For more information on tire pressure and inflation
seeInflation - Tire Pressure on page 5-52.
(F) Tire Size:A combination of letters and numbers
define a tire’s width, height, aspect ratio, construction
type and service description. The letter T as the
first character in the tire size means the tire is for
temporary use only. Compact Spare Tire Example
5-48

Tire Size
The following illustration shows an example of a typical
passenger car tire size.
(A) Passenger (P-Metric) Tire:The United States
version of a metric tire sizing system. The letter P as
the first character in the tire size means a passenger
vehicle tire engineered to standards set by the U. S. Tire
and Rim Association.
(B) Tire Width:The three-digit number indicates the
tire section width in millimeters from sidewall to sidewall.
(C) Aspect Ratio:A two-digit number that indicates
the tire height-to-width measurements. For example,
if the tire size aspect ratio is 70, as shown in item C
of the illustration, it would mean that the tire’s sidewall
is 70% as high as it is wide.(D) Construction Code:A letter code is used
to indicate the type of ply construction in the tire.
The letter R means radial ply construction; the letter D
means diagonal or bias ply construction; and the
letter B means belted-bias ply construction.
(E) Rim Diameter:Diameter of the wheel in inches.
(F) Service Description:These characters represent
the load range and the speed rating of a tire. The
load range represents the load carry capacity a tire is
certified to carry. The speed rating is the maximum
speed a tire is certified to carry a load. Speed ratings
range from A to Z.
Tire Terminology and De nitions
Air Pressure:The amount of air inside the tire pressing
outward on each square inch of the tire. Air pressure
is expressed in pounds per square inch (psi) or
kilopascal (kPa).
Accessory Weight:This means the combined weight
of optional accessories. Some examples of optional
accessories are, automatic transmission, power steering,
power brakes, power windows, power seats, and air
conditioning.
Aspect Ratio:The relationship of a tire’s height to
its width.
5-49

{CAUTION:
Using the wrong replacement wheels, wheel
bolts, or wheel nuts on your vehicle can be
dangerous. It could affect the braking and
handling of your vehicle, make your tires lose
air and make you lose control. You could have
a collision in which you or others could be
injured. Always use the correct wheel, wheel
bolts and wheel nuts for replacement.
Notice:The wrong wheel can also cause problems
with bearing life, brake cooling, speedometer or
odometer calibration, headlamp aim, bumper height,
vehicle ground clearance, and tire or tire chain
clearance to the body and chassis.
SeeChanging a Flat Tire on page 5-61for more
information.
Used Replacement Wheels
{CAUTION:
Putting a used wheel on your vehicle is
dangerous. You cannot know how it has been
used or how far it has been driven. It could
fail suddenly and cause a crash. If you have
to replace a wheel, use a new GM original
equipment wheel.
Tire Chains
Notice:Use tire chains only where legal and
only when you must. Use only SAE Class “S” type
chains that are the proper size for your tires.
Install them on the front tires and tighten them as
tightly as possible with the ends securely fastened.
Drive slowly and follow the chain manufacturer’s
instructions. If you can hear the chains contacting
your vehicle, stop and retighten them. If the contact
continues, slow down until it stops. Driving too
fast or spinning the wheels with chains on will
damage your vehicle.
5-59

Reporting Safety Defects
Canadian Government..................................7-14
General Motors...........................................7-14
United States Government............................7-13
Restraint System Check
Checking the Restraint Systems....................1-63
Replacing Restraint System Parts
After a Crash..........................................1-64
Right Front Passenger Position, Safety Belts......1-23
Roadside
Assistance Program....................................... 7-6
Rocking Your Vehicle to Get it Out....................4-28
Running the Engine While Parked.....................2-30
S
Safety Belt
Pretensioners..............................................1-27
Reminder Light............................................3-32
Reminder Tone............................................3-32
Safety Belts
Driver Position............................................1-15
How to Wear Safety Belts Properly................1-15
Questions and Answers About Safety Belts.....1-14Safety Belts (cont.)
Rear Seat Passengers.................................1-23
Right Front Passenger Position......................1-23
Safety Belt Extender....................................1-27
Safety Belt Use During Pregnancy.................1-23
Safety Belts Are for Everyone.......................1-10
Shoulder Belt Height Adjuster........................1-22
Safety Warnings and Symbols.............................. iii
Seats
Driver Seat Tilt Adjuster................................. 1-3
Head Restraints............................................ 1-7
Heated Seats............................................... 1-4
Manual........................................................ 1-2
Manual Lumbar............................................. 1-4
Power Seat.................................................. 1-3
Rear Seat Operation...................................... 1-8
Reclining Seatbacks...................................... 1-4
Securing a Child Restraint
Rear Seat Position......................................1-44
Right Front Seat Position..............................1-46
Selecting the Right Schedule, Maintenance.......... 6-5
Service........................................................... 5-3
Accessories and Modifications......................... 5-3
Adding Equipment to the Outside of
Your Vehicle.............................................. 5-5
11

Service (cont.)
California Proposition 65 Warning.................... 5-4
Doing Your Own Work................................... 5-4
Engine Soon Light.......................................3-40
Publications Ordering Information...................7-14
Servicing Your Airbag-Equipped Vehicle..............1-62
Sheet Metal Damage.......................................5-73
Shifting Into Park (P).......................................2-26
Shifting Out of Park (P)...................................2-28
Short Trip/City Scheduled Maintenance................ 6-7
Shoulder Belt Height Adjuster...........................1-22
Signals, Turn and Lane-Change.......................... 3-7
Spare Tire
Compact....................................................5-67
Installing....................................................5-63
Removing...................................................5-62
Storing.......................................................5-66
Specifications, Capacities.................................5-83
Speed Sensitive Power Steering (SSPS)
Warning Light.............................................3-37
Speedometer..................................................3-31
Starting Your Engine.......................................2-19
Steering........................................................4-11
Steering, Suspension and Front Drive
Axle Boot and Seal Inspection.......................6-23Steering Wheel Controls, Audio.........................3-78
Steering Wheel, Tilt Wheel................................. 3-6
Storage Areas
Center Console Storage Area........................2-35
Coinholder(s)..............................................2-34
Cupholder(s)...............................................2-34
Glove Box..................................................2-34
Rear Seat Armrest.......................................2-35
Sunglasses Storage Compartment..................2-35
Stuck in Sand, Mud, Ice or Snow......................4-28
Sun Visors.....................................................2-13
Sunroof.........................................................2-36
T
Tachometer....................................................3-31
Taillamps
Turn Signal, Stoplamps and
Back-up Lamps........................................5-44
TCS Active Light.............................................3-38
TCS Warning Light..........................................3-38
Theft-Deterrent System....................................2-14
Theft-Deterrent Systems...................................2-14
Immobilizer.................................................2-16
Immobilizer Operation...................................2-16
12