Downloaded from www.Manualslib.com manuals search engine ,
Temperature -A, B, C
The temperature grades are A (the highest), B, and C, representing the tire's
resistance 10 the generation of heat and its ability 10 dissipate heat when tested
under controlled conditions 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 10 a level of performance which all passenger car
tires must meet under the Federal Motor
Vehicle Safety Standard No. 109. Grades B and A represent higher levels of performance on the laboratory lest
wheel than the ",nimum required by law.
Warning : The temperature grade forlhis 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 heal buildup and possible tire failure .
These grades are molded on the sidewalls 01 passenger car tires.
While
the tires available as 'standard or optional equipment .on General
Motors vehicles may vary with respect to these grades, all such tires meet General Motors performance s!andards and have been approved for
use on General Motors vehicles. All passenger car tires must conform to Federal safety requirements in addition to these grades.
You
should replace your tires when:
1 . The tires are worn to a point where 1.6
milHmeters (2/ 32 inch) or less t.read remains, or the cord or fabric is showing. '.
To help you detect this, your tires have built-in tread wear indicators that
appear between the tread grooves when the tread is 1.6 millimeters
(2/32
inch) or less. When the indicators appear in two or more adjacent grooves at
three spots around the tire, the tire should be replaced.
TPC
SPEC. NO .
BRAND
NAME
EXAMPLE TIRE LOAD
RANGE
CONSTRUCTION
2
. The tread or sidewall is cracked, cut or snagged deep enough to expose
the cord or fabric.
3. The tire has a bump , bulge or split.
4 . The tire has a puncture , cut, or other injury thai can 't
be correctly repaired
because of the size or
location of the injury .
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Downloaded from www.Manualslib.com manuals search engine Wheel Replacement
Damaged wheels must be replaced. For example, replace wheels if they are
bent,
cracked,or heavily rusted, or if wheel nuts often become loose. Also
replace wheels which leak air (except some aluminum wheels which can be repaired-- see your authorized dealer). See the Caution under "Inspection and
Rotation"
in this section regarding the importance of obtaining good metal-tometal contact when replacing or changing wheels.
Do not use bent wheels which have been straightened, and do not use inner
tubes in leaking wheels designed for tubeless tires. Such wheels may have
structural damage and could fail without warning. When replacing wheels for
any reason, the new wheels should be equal in load limit. diameter, width,
offset, and mounting configurations to those originally installed on your vehicle.
A wheel of the wrong size or type may adversely affect such things
as wheel
and bearing life, brake cooling, speedometer I odometer calibration, stopping
ability, headlight
aim, bumper height, vehicle ground clearance, and tire or tire
chain clearance to the body and chassis. Replacement with used wheels is not advised; they may have been treated harshly or have very high mileage, and
could fail without warning.
You can get wheels from your dealer.
Warranty
Tires are warranted by the tire manufa9turers. Warranty information is included
in the manufacturer's Warranty folder furnished With your vehicle.
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