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Don’t include the compact spare tire in your
tire rotation.
After the tires
have been rotated, adjust the front and
rear
inflation pressures as shown on the Tire-Loading
Information label. Make certain that all wheel nuts are
properly tightened. See “Wheel Nut Torque” in the Index.
I
Rust or dirt on a wheel, or on the parts to’ which
it is fastened, can make wheel nuts become loose
after a time. The wheel could come off and cause
an accident,
When you change a wheel, remove
any rust or
dirt from places where the wheel
attach.& to the vehicle. In an emergency, you can
use
a cloth or a paper towel to do this; but be
sure to use a scraper or wire brush later, if
you need to, to get all the rust or dirt off.
(See “Changing a Flat Tire” in the.Index.)
When It’s The 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: . .. 1. .. . .. ...
You can see the indicators at three or more places
.. . ‘ : __ .I
around the tire.
You can see cord or fabric showing through the
tire’s
rubber.
The tread or sidewall is cracked, cut or snagged deep
enough to show cord or fabric.
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.
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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”
I>>.,.. ,.. ;: (for mud and snow). A. . > ..
I ‘, -. 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.
.
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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
I , conditions on a specified government test course. For
example,
a tire graded 150 would wear one and a half
(1 112) 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 (straightahead) 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 co’nditions 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.
The grade
C corresponds to a level of performame
which all passenger car tires must meet under the
Federal Motor Vehicle Safety Standard
No. 109.
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Grades B and A represent higher levels of performance
on the laboratory test wheel than the minimum required
by law.
Warning: The temperature grade for this tire is
established for a tire that is properly inflated and not
overloaded. Excessive speed, underinflation, or
excessive loading, either separately or in combination,
can cause heat buildup and possible tire failure.
Wheel Alignment and Tire Balance
The wheels on your vehicle were aligned and balanced
carefully at the factory to give you the longest tire life
and best overall performance.
In most cases, you will not need to have your wheels
aIigned again. However,
if you notice unusual tire wear
or your vehicle pulling one way or the other, the
alignment may need to be reset. If you notice your
vehicle vibrating when driving on a smooth road, your
wheels may need to be rebalanced.
Wheel Replacement
Replace any wheel that is bent, cracked, or badly rusted
or corroded. If wheel nuts keep coming loose, the wheel,
wheel bolts and wheel nuts should be replaced. If the
wheel leaks air, replace it (except some aluminum wheels, which
can sometimes be repaired). See your
Pontiac dealer if any of these conditions exist.
Your dealer will know the kind
of wheel you need.
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
Pontiac model.
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.
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Tire Chains
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.
See “Changing a Flat Tire” in the Index for
more information.
Used Replacement Wheels
Putting a used wheel on your vehicle
is
dangerous. You can’t know how it’s been used or
how many miles
it’s been driven. It could fail
suddenly and cause an accident.
Hf you have to
replace a wheel, use a new GM original
equipment wheel.
NOTICE:
If your Pontiac has P235/55R16, P245/50ZRl6 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.
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Appearance Care
Remember, cleaning products can be hazardous. Some
are toxic. Others can burst into flame if you strike a
match or get them on a hot part of the vehicle. Some are
dangerous
if you breathe their fumes in a closed space.
When you use anything from a container to clean your
Pontiac, be sure
to follow the manufacturer’s warnings
and instructions. And always open your doors or
windows when you’re cleaning the inside.
Never use these to clean your vehicle:
. Gasoline
Benzene
Naphtha
0 Carbon Tetrachloride
Acetone
0 Paint Thinner
Turpentine
0 Lacquer Thinner
0 Nail Polish Remover
They can all be hazardous -- some more than
others
-- and they can all damage your vehicle, too. Don’t use any of these unless this manual says you can.
In many uses, these will damage your vehicle:
0 Alcohol
Laundry Soap
Bleach
0 Reducing Agents
Cleaning the Inside of Your Pontiac
Use a vacuum cleaner often to get rid
of dust and loose
dirt. Wipe vinyl or leather with a clean, damp cloth.
Your Pontiac dealer has two
GM cleaners, a
solvent-type spot lifter and
a foam-type powdered
cleaner. They will clean normal spots and stains very well.
Do not use them on vinyl or leather.
Here are some cleaning tips:
0 Always read the instructions on the cleaner label.
0 Clean up stains as soon as you can -- before they set.
0 Use a clean cloth or sponge, and change to a clean area
often. A
soft brush may be used if stains are stubborn.
Use solvent-type cleaners in a well-ventilated area
0 If a ring forms after spot cleaning, clean the entire
only.
If you use them, don’t
saturate the stained area.
area immediately or it will set.
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Using Foam-Qpe Cleaner on Fabric
1.
2.
3.
4.
5.
6.
7.
a.
9.
10.
11.
Vacuum and brush the area to remove any
loose
d.ilt
Always clean a whole trim panel or section. Mask
surrounding trim along stitch
or welt lines.
Mix Muhi-Purpose Powdered Cleaner following
the directions on the container label.
Use suds only
and apply with a clean sponge.
Don’t saturate the material.
Don’t rub it roughly.
As soon as you’ve cleaned the section, use a sponge
to remove the suds.
-Rinse the section with a clean, wet sponge.
Wipe
off what’s left with a slightly damp paper
towel or cloth.
Then dry it immediately with a blow dryer.
Wipe
with a clean cloth.
Using Solvent-’Qpe Cleaner on Fabric
First, see if you have to use solvent-type cleaner at all.
Some
spots and stains will clean off better with just
water and mild soap.
If you need.to use a solvent:
Gently scrape excess soil from the trim material with
a clean, dull knife or scraper. Use very little cleaner,
light pressure and clean cloths (preferab’ly cheesecloth). Cleaning should start at
the outside of
the stain, “feathering” toward the center. Keep
changing
to a clean section of the cloth.
When you clean a stain from fabric, im.mediately
dry the area with a blow dryer to help prevent a
cleaning ring.
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Special Cleaning Problems
Greasy or Oily Stains
Stains caused by grease, oil, butter, margarine, shoe
polish, coffee with cream, chewing gum, cosmetic
creams, vegetable oils, wax crayon, tar md asphalt can
be removed as follows:
1. Carefully scrape off excess stain.
2. Follow the solvent-type instructions described earlier.
3. Shoe polish, wax crayon, tar and asphalt will stain if
left on a vehicle's seat fabric. They should be removed
as soon as possible. Be careful, because the cleaner
will dissolve them and may cause them to spread.
Non-Greasy Stains
Stains caused by catsup, coffee (black), egg,, fruit, fruit
juice,
milk, soft drinks, wine, vomit, urine and blood can
be removed as follows:
1. Carefully scrape
off excess stain, then sponge the
2. If a stain remains, follow the foam-type instructions
soiled area with cool
water.
described earlier.
3. If an odor lingers after cleaning vomit or urine,
treat the
area with a waterhaking soda solution:
1 teaspoon (5 ml) of baking soda to 1 cup (250 ml)
of lukewarm water.
4. If needed, clean lightly with solvent-type cleaner.
Combination Stains
Stains caused by candy, ice cream, mayonnaise, chili
sauce and unknown stains can be removed as follows:
0 Carefully scrape off excess stain,'then clean with
If a stain remains, clean it with solvent-type cleaner.
Cleaning Vinyl
Use warm water and a clean cloth.
cool
water and allow to
dry.
0
a
Rub with a clean, damp cloth to remove dirt. You
may have to
do it more than once.
Things like tar, 'asphalt and shoe polish will stain if
you don't get them off quickly. Use a clean cloth and
a
GM VinyVLeather Cleaner or equivalent product.
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