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Tire size 205/55R16 91 H, used on some vehicles, meets
the General Motors Tire Performance Criteria
Specification (TPC Spec) rating, but the TPC Spec code
has not been molded onto the tire’s sidewall. If your
vehicle has these tires, and you need to replace them,
you can still get these TPC Spec rated tires by asking
your GM dealer. Your GM dealer can order these tires by
part number. This way, your vehicle will continue to give
the proper endurance, handling, traction, and ride as the
original tires.
Winter tires with the same speed rating as your original
equipment tires may not be available for H, V, W, Y,
and ZR speed rated tires. If you choose winter tires with
a lower speed rating, never exceed the tire’s maximum
speed capability.
{CAUTION:
Mixing tires could cause you to lose control
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. It is all right to drive with your
compact spare temporarily, as it was
developed for use on your vehicle. See
Compact Spare Tire on page 5-83.
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