height CADILLAC STS 2007 1.G User Guide

(B) Tire Ply Material:The type of cord and
number of plies in the sidewall and under the tread.
(C) Tire Identication Number (TIN):The letters
and numbers following the DOT (Department of
Transportation) code is the Tire Identication
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 Ination Load
Limit:Maximum load that can be carried and the
maximum pressure needed to support that load.
(E) Tire Ination:The temporary use tire or
compact spare tire should be inated to 60 psi
(420 kPa). For more information on tire pressure
and ination seeInation - Tire Pressure on
page 431.
(F) Tire Size:A combination of letters and
numbers dene a tire’s width, height, aspect ratio,
construction type, and service description. The
letter T as the rst character in the tire size means
the tire is for temporary use only.(G) TPC Spec (Tire Performance Criteria
Specication):Original equipment tires designed
to GM’s specic tire performance criteria have
a TPC specication code molded onto the sidewall.
GM’s TPC specications meet or exceed all
federal safety guidelines.
Tire Size
The following illustration shows an example of a
typical passenger vehicle tire size.
(A) Passenger (P-Metric) Tire:The United States
version of a metric tire sizing system. The letter P
as the rst 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.
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(C) Aspect Ratio:A two-digit number that
indicates the tire height-to-width measurements.
For example, if the tire size aspect ratio is
60, as shown in item C of the illustration, it would
mean that the tire’s sidewall is 60 percent 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 speed rating of the
tire. The load index represents the load carry
capacity a tire is certied to carry. The load index
can range from 1 to 279. The speed rating is
the maximum speed a tire is certied to carry a
load. Speed ratings range from A to Z.Tire Terminology and Denitions
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/transaxle, power steering, power
brakes, power windows, power seats, and
air conditioning.
Aspect Ratio:The relationship of a tire’s height
to its width.
Belt:A rubber coated layer of cords that is
located between the plies and the tread. Cords
may be made from steel or other reinforcing
materials.
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.
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Each new wheel should have the same
load-carrying capacity, diameter, width, offset and
be mounted the same way as the one it
replaces.
If you need to replace any of your wheels, wheel
bolts, or wheel nuts, replace them only with
new GM original equipment parts. This way, you
will be sure to have the right wheel, wheel
bolts, and wheel nuts for your vehicle.
{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 464for 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.
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Reporting Safety Defects
Canadian Government............................. 542
General Motors........................................ 542
United States Government....................... 542
Restraint System Check
Checking the Restraint Systems................. 80
Replacing Restraint System Parts
After a Crash......................................... 81
Retained Accessory Power (RAP)................ 112
Right Front Passenger Position,
Safety Belts............................................... 30
Roadside
Service.................................................... 531
Rocking Your Vehicle to Get it Out.............. 349
Routing, Engine Drive Belt.......................... 519
Run-Flat Tires............................................. 429
Running the Engine While Parked............... 126
S
Safety Belt
Passenger Reminder Light....................... 244
Pretensioners............................................. 37
Reminder Light........................................ 243Safety Belts
Care of.................................................... 479
Driver Position........................................... 21
How to Wear Safety Belts Properly............ 20
Questions and Answers About
Safety Belts............................................ 19
Rear Safety Belt Comfort Guides............... 34
Rear Seat Passengers............................... 31
Right Front Passenger Position.................. 30
Safety Belt Extender.................................. 37
Safety Belt Use During Pregnancy............. 30
Safety Belts Are for Everyone.................... 15
Shoulder Belt Height Adjuster.................... 29
Safety Warnings and Symbols......................... 4
Scheduled Maintenance............................... 505
Seats
Head Restraints......................................... 13
Heated and Ventilated Seats...................... 11
Heated Seats............................................. 10
Heated Seats - Rear.................................. 14
Memory................................................... 169
Power Lumbar............................................. 9
Power Reclining Seatbacks........................ 11
Power Seats................................................ 9
556

Securing a Child Restraint
Rear Seat Position..................................... 57
Right Front Seat Position........................... 59
Security Light.............................................. 256
Service........................................................ 362
Accessories and Modications.................. 363
Adding Equipment to the Outside of
Your Vehicle......................................... 365
California Proposition 65 Warning............. 363
Doing Your Own Work............................. 364
Engine Soon Light................................... 252
Publications Ordering Information............. 543
Servicing Your Airbag-Equipped Vehicle......... 78
Sheet Metal Damage................................... 483
Shifting Into Park (P)................................... 122
Shifting Out of Park (P)............................... 124
Shoulder Belt Height Adjuster........................ 29
Signals, Turn and Lane-Change.................. 182
Spare Tire
Compact.................................................. 475
Installing.................................................. 466
Removing................................................ 465
Storing..................................................... 473
Specications, Capacities............................ 498
Speedometer............................................... 243StabiliTrak®System..................................... 326
Starting Your Engine................................... 113
Steering...................................................... 327
Steering Wheel Controls, Audio................... 310
Steering Wheel Controls, Memory............... 169
Steering Wheel, Heated .............................. 181
Steering Wheel, Power Tilt Wheel and
Telescopic Steering Column..................... 181
Storage Areas
Center Console Storage Area................... 146
Convenience Net..................................... 146
Cupholder(s)............................................ 146
Glove Box................................................ 146
Stuck in Sand, Mud, Ice, or Snow............... 348
Sun Visors.................................................. 107
Sunroof....................................................... 147
T
Tachometer................................................. 243
TCS Warning Light...................................... 250
Telescopic Steering Column, Power
Tilt Wheel................................................ 181
Theft-Deterrent, Radio................................. 309
Theft-Deterrent System................................ 108
557