Chevrolet 2009 Express Owner's Manual page 298

(E) Tire Identification Number (TIN)
and numbers following 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
:
number of plies in the sidewall and under the tread.
(G) Single Tire Maximum Load
that can be carried and the maximum pressure
needed to support that load when used as
a single. For information on recommended tire
pressure see Inflation - Tire Pressure on page 5-64
and Loading the Vehicle on page 4-19.
5-58
The letters
:
The type of cord and
Maximum load
:
Tire Size
The following examples show the different parts of
a tire size.
Passenger (P-Metric) Tire
(A) Passenger (P-Metric) Tire
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.
(B) Tire Width The three-digit number indicates
:
the tire section width in millimeters from sidewall
to sidewall.
The United States
: