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Buying New Tires
GM has developed and matched specific tires for
your vehicle. The original equipment tires installed
on your vehicle, when it was new, were designed to
meet General Motors Tire Performance Criteria
Specification (TPC spec) system rating. If you need
replacement tires, GM strongly recommends that you get
tires with the same TPC Spec rating. This way, your
vehicle will continue to have tires that are designed to
give the same performance and vehicle safety,
during normal use, as the original tires.
GM’s exclusive TPC Spec system considers over a
dozen critical specifications that impact the overall
performance of your 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 by the
tire manufacturer. If the tires have an all-season tread
design, the TPC spec number will be followed by an
MS for mud and snow. See Tire Sidewall Labeling
on page 5-60 for additional information.
Winter tires with the same speed rating as your vehicle’s
original equipment tires may not be available for H, V,
W, and ZR speed rated tires. If you choose snow
tires with a lower speed rating, never exceed the tire’s
maximum speed capability.
{CAUTION:
Mixing tires could cause you to lose control of
your vehicle while driving. If you mix tires of
different sizes, brands, or types (radial and
bias-belted tires) the vehicle may not handle
properly, and you could have a crash. Using
tires of different sizes, brands or types may
also cause damage to your vehicle. Be sure to
use the correct size, brand and type of tires on
all wheels.
Your vehicle may have a compact spare tire
and wheel assembly. If equipped, it is all right
to drive with your vehicle’s compact spare tire
temporarily, it was developed for use on your
vehicle. See Compact Spare Tire (CTS Only) on
page 5-93.
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