wheel size PONTIAC GRAND-AM 1996 Owners Manual

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
(42Q Wa).
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 perfonnwell at posted speed limits for
distances up to.3,OOO miles
(5 000 km), so you can
finish your trip
and have your full-size tire repaired or
replaced where you want. 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.
NOTICE:
When the compact spare is installed, don’t take
your vehicle through,an automatic
car wash with
guide rails. The compact spare can get caught
on
the rails. That can damage the tire and wheel,
and maybe’ other parts
of your vehicle.
Don’t use your compact spare on other vehicles.
And don’t
mix your compact spare tire or wheel with
other wheels or tires. They won’t fit. Keep your spare
tire and its wheel together.
i
NOTICE:
Tire chains won’t fit your compact spare. Using
them can damage your vehicle and can damage
,the chains too. Don’t use tire chains on’-your
compact spare.
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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 four wheels.
It's all right to drive with your compact spare,
though. It was developed for use on 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 temporqy 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.
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Used Replacement Wheels Tire Chains
A CAUTION:
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.
If you have to
replace
a wheel, use a new GM original
equipment wheel.
NOTICE:
If your Pontiac has P195/65R15 or P205/55R16
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 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.
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