Tire Sidewall Labeling - Chevrolet HHR 2010 Owner's Manual

Tire Sidewall Labeling

Useful information about a tire is molded into its
sidewall. The examples below show a typical
passenger vehicle tire and a compact spare tire
sidewall.
Passenger (P-Metric) Tire Example
6-56
(A) Tire Size The tire size 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) TPC Spec (Tire Performance Criteria
Specification) 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) DOT (Department of Transportation)
Department of Transportation (DOT) code indicates
that the tire is in compliance with the U.S.
Department of Transportation Motor Vehicle Safety
Standards.
The
: