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aging. This area should be free of
grease, gasoline, or other substances that can deteriorate rubber.
Parking for an extended period can
cause flat spots on the tires that may result in vibrations while driving.
When storing a vehicle for at least a month, remove the tires or raise the
vehicle to reduce the weight from the tires.
Buying New Tires
GM has developed and matched specific tires for the vehicle. The
original equipment tires installed were designed to meet General
Motors Tire Performance Criteria Specification (TPC Spec) system
rating. When replacement tires are needed, GM strongly recommends buying tires with the same TPC
Spec rating.
GM's exclusive TPC Spec system considers over a dozen critical
specifications that impact the
overall performance of the vehicle, including brake system
performance, ride and handling,
traction control, and tire pressure monitoring performance. GM's
TPC Spec number is molded onto the tire's sidewall near the tire
size. If the tires have an all-season tread design, the TPC Spec
number will be followed by MS for mud and snow. See Tire Sidewall
Labeling 0 351, for additional
information.
GM recommends replacing worn tires in complete sets of four.
Uniform tread depth on all tires will help to maintain the
performance of the vehicle.
Braking and handling performance may be adversely affected if all the tires are not replaced at the same
time. If proper rotation and
maintenance have been done, all four tires should wear out at
Rotation 0 362 for information on proper tire rotation. However, if it
is necessary to replace only one axle set of worn tires, place the new tires on the rear axle.
Winter tires with the same speed rating as the original equipment
tires may not be available for H, V, W, and ZR speed rated tires. Never exceed the winter tire's maximum speed capability when using
winter tires with a lower speed rating.
{ Warning
Tires could explode during
improper service. Attempting to mount or dismount a tire could cause injury or death. Only your dealer or authorized tire service center should mount or
dismount the tires.
