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(A) Tire Size: The tire size code is a combination
of letters and numbers used to define a particular tire’s
width, height, aspect ratio, construction type and
service description. See the “Tire Size” illustration
later in this section for more detail.
(B) Tire Performance Criteria Specification
(TPC Spec): Original equipment tires designed to
GM’s specific tire performance criteria have a TPC
specification code molded onto the sidewall. GM’s
TPC specifications meet or exceed all federal safety
guidelines.
(C) Dual Tire Maximum Load: Maximum load that
can be carried and the maximum pressure needed to
support that load when used in a dual configuration.
For information on recommended tire pressure see
Inflation - Tire Pressure on page 5-64 and Loading
Your Vehicle on page 4-49.
(D) Department of Transportation (DOT):
The Department of Transportation (DOT) code indicates
that the tire is in compliance with the U.S. Department
of Transportation Motor Vehicle Safety Standards.
LT-Metric Tire
5-58