tire size PONTIAC FIREBIRD 1997 Owners Manual

Loading Your Vehicle
cm OCCUPANTS VEHICLE CAP. WT.
TIRE-LOADING INFORMATION -.
FRT. CTR. RR. TOTAL LBS. KG
MAX. LOADING & GVWR SAME AS VEHICLE
CAPACITY WEIGHT XXX COLD TIRE
TIRE SIZE SPEED PRESSURE
RTG PSI/KPa
FRT.
RR.
SPA.
IF TIRES ARE HOT, ADD 4PS1/28KPa
SEE OWNER'S MANUAL FOR ADDITIONAL
I'NFORMATION
Two labels on your vehicle show how much weight it
may properly
carry. The Tire-Loading Information l'abel
found on the driver's
door tells you the proper size,
speed rating and recommended inflation pressures for
the tires on your vehicle. It also gives you important
information about the number of people that can be in
your vehicle and the total weight that you can carry,
This weight is called the vehicle capacity weight and
includes the weight of all occupants, cargo, and all
nonfactory-installed options.
MFB BY GENERAL MOTORS CORP
DATE GVWW GAWR FRT GAWR RR
THIS VEHICLE CONFORMS TO ALL APPLI-
CABLE U.S. FE:DERAL MOTOR VEHICLE
SAFETY,
BUMPER, AND THEFT PREVENTION
STANDARDS IN EFFECT ON THE DATE OF
MANUFACTURE SHOWN ABOVE.
The other label is the Certification label, found on the
rear edge of the driver's door. It tells you the gross
weight capacity of your vehicle,
called GVWR (Gross
Vehicle Weight Rating). The GVWR includes the weight
of the vehicle, all occupants, fuel and cargo. Never
exceed
the GVWR for your vehicle, or the Gross Axle
Weight Rating
(GAWR) for either the front or rear axle.
And, if you do have a heavy load, you should spread
it out. Don't ca more than 100 lbs. (45 kg) in your
rear area.

Replace the jack, wheel wrench and flat tire using the
storage instructions. When
you replace the trim panel,
be sure to tuck
it under the weatherstrip.
1 : Trim Panel
2. Bolt
3. Cover
4. Jack
5. Wing Nut
6. Adapter
7. Compact Spare Tire
8. Full-Size Tire
9. Carpet Flap
10. Tire Storage Bolt
11. Convertible Top Protection
12. Knob
5-37

Compact Spare Tire
Although the compact spare tire was fully inflated when
your vehicle was new, it can lose air after a time. Check
the inflation pressure regularly. It should be
60 psi
(420 kPa).
After installing the compact spare on your vehicle, YOU
should stop as soon as possible and make sure your
spare tire is correctly inflated. The compact spare is
made to perform well at speeds
up to 65 mph
(105 km/h) for distances up to 3,000 miles (5 000 km),
so you can finish your trip and have your full-size tire
repaired or replaced where you want. (When the
compact spare
is used on the rear axle, see Notice
below.) Of course, it’s best to replace your spare with a
full-size tire as soon as you can. Your spare will last
longer and be in good shape in case you need it again. When the compact
spare is on the rear axle, the optional
traction control system will cycle and limit acceleration
for about the first 15 seconds of driving after each
engine start.
NOTICE:
If the compact spare is used as a rear tire, do not
drive faster than
50 mph (SO km/h). Damage to
the rear axle may occur
if the compact spare is
driven faster than 50 mph
(80 kmh).
5-38

When It’s Time for New Tires
One way to tell when it’s
time for new tires
is to
check the treadwear
indicators, which will appear when your tires have
only
1/16 inch (1.6 mm) or
less of tread remaining.
You need a new tire if any of the following statements
are true:
0 You can see the indicators at three or more places
around the tire.
0 You can see cord or fabric showing through the
tire’s rubber.
0 The tread or sidewall is cracked, cut or snagged deep
enough to show cord
or fabric.
0 The tire has a bump, bulge or split.
The tire has a puncture, cut or other damage that
can’t be repaired well because
of the size or location
of the damage.
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 dif€erent sizes or types
(radi,al
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 0n your vehicle.
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 lirnited-pro'duction 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 gov'esnrnent 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.
6-54

Used Replacement Wheels
Putting
a used wheel on your vehicle is
dangerous. You can’t know how
it’s been used or
how
far it’s been driven. It could fail suddenly
and cause an accident.
If you have to replace a
wheel, use a new GM original equipment wheel.
Tire Chains
NOTICE:
If your Pontiac has P235/55R16, P245/50ZR16 or
P275/40ZR17 size tires, don’t use tire chains.
They can damage your vehicle.
If you have other tires, 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 rear 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.
6-57

Appearance Care Materials Chart
PART NUMBER USAGE DESCRIPTION SIZE
994954 Exterior
Polish
Polishing Cloth - Wax Treated 23 in. x 25 in. -
1050004
Exterior wash
Wash and Wax
Concentrate 16
02. (0.473 L) 1052870 Cleans
grease, grime and smoke
film Glass Cleaner 23 oz. (0.680 L) I050427
Spot and stain removal
Vinyl
Cleaner 32 oz. (0.946 L) 1050214 Exterior
cleaner and polish
Magic Mirror Cleaner Polish
1 gal. (3.785 L) 1050200
Removes soil and black marks
White Sidewall Tire Cleaner
16 02. (0.473
L)
1050 174 Removes rust and corrosion
Chrome Cleaner and Polish 16
oz. (0.473
L)
10501 73
Also removes old waxes and polishes
Tar and Road Oil
Remover 16 oz. (0.473 L) 10501 72 Shines vehicle without scratching Chamois
2.75
sq. ft.
~
10529 18**
16 02. (0.473 L) 1052925 Protects vinyl, leather and rubber
Armor
All TM Protector 8 oz. (0.237 L)
Attracts and absorbs soils Capture Dry Spot Remover
8 oz. (0.237 L)
1052930 Spray
on wheel cleaner
Wheel Cleaner
16 oz. (0.473
L)
1052929 Cleans
vinyl, cloth,
tires and mats Multi-Purpose Powdered Cleaner
12345002**
16 oz. (0.473 L) Armor All TM Cleaner Cleans vinyl, leather and rubber
12345725
Spot cleans paint and gives high luster
Finish Enhancer
16
oz. (0.473
L)
12377966 Protects finish and removes
fine scratches
Cleaning
Wax
16
02. (0.473 L)
12377964 Shines tires
Silicone Tire
Shine 12
oz. (0.354 L)
See your General Motors Parts Department for these products. *‘N Not recommended for use on instrument panel vinyl.
See
“Fluids and Lubricants” in the Index.
6-67