Buick 2012 LaCrosse User Manual download pdf (Page 389)

Black plate (63,1)

Buick LaCrosse Owner Manual - 2012

Vehicle Care 10-63

Warning: The traction grade

assigned to this tire is based on

straight-ahead braking traction

tests, and does not include

acceleration, cornering,

hydroplaning, or peak traction

characteristics.

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

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 to a level of

performance which all

passenger car tires must meet

under the Federal Motor Safety

Standard No. 109. 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 tires and wheels were aligned

and balanced at the factory to

provide the longest tire life and best

overall performance. Adjustments to

wheel alignment and tire balancing

will not be necessary on a regular

basis. However, check the

alignment if there is unusual tire

wear or if the vehicle is pulling to

one side or the other.

If the vehicle vibrates when driving

on a smooth road, the tires and

wheels might need to be

rebalanced. See your dealer for

proper diagnosis.

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.

Some aluminum wheels can be

repaired. See your dealer if any of

these conditions exist.

Your dealer will know the kind of

wheel that is needed.

Each new wheel should have the

same load-carrying capacity,

diameter, width, offset, and be

mounted the same way as the

one it replaces.

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