GMC Express 2011 Owner's Manual page 324

10-54 Vehicle Care
(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)
:
The Department of
Transportation (DOT) code
indicates that the tire is in
compliance with the U.S.
Department of Transportation
Motor Vehicle Safety Standards.
(D) 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.
(E) Tire Ply Material
of cord and number of plies in
the sidewall and under the tread.
(F) Uniform Tire Quality
Grading (UTQG)
Tire manufacturers are
required to grade tires based
on three performance factors:
treadwear, traction, and
temperature resistance. For
more information, see Uniform
Tire Quality Grading on
page 10 72.
(G) Maximum Cold Inflation
The type Load Limit
:
that can be carried and the
maximum pressure needed
to support that load. For
information on recommended
tire pressure see Tire Pressure
on page 10 60 and Vehicle Load
Limits on page 9 12.
:
Maximum load
: