Tire Designations - GMC 2012 Sierra Series Owner's Manual

(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) 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
Tire Pressure on page 10 62
andVehicle Load Limits on
page 9 17.
(D) DOT (Department of
Transportation) The
:
Department of Transportation
(DOT) code indicates that the
tire is in compliance with the
U.S. Department of
Transportation Motor Vehicle
Safety Standards.
(E) Tire Identification Number
(TIN) The letters and numbers
:
following the DOT code are the
Tire Identification Number (TIN).
The TIN shows the
manufacturer and plant code,
tire size, and date the tire was
manufactured. The TIN is
:
molded onto both sides of the
tire, although only one side may
have the date of manufacture.
(F) Tire Ply Material
of cord and number of plies in
the sidewall and under the tread.
(G) Single Tire Maximum
Load Maximum load that can
:
be carried and the maximum
pressure needed to support that
load when used as a single. For
information on recommended
I n f o r ma t i o n P r o v i d e d b y :
Vehicle Care
tire pressure see Tire Pressure
on page 10 62 and Vehicle Load
Limits on page 9 17.

Tire Designations

Tire Size
The examples show a typical
passenger vehicle and light
truck tire size.
The type
:
Passenger (P Metric) Tire
(A) Passenger (P Metric) Tire
The United States version of a
metric tire sizing system. The
letter P as the first character in
the tire size means a passenger
vehicle tire engineered to
standards set by the U.S. Tire
and Rim Association.
10-57
: