Tire Designations - GMC Sierra 2500 HD 2024 Owner's Manual

(3) 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 0 350 and
Vehicle Load Limits 0 210.
(4) 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.
DOT Tire Date of Manufacture
four digits of the TIN indicate the tire
manufactured date. The first two digits
represent the week and the last two
digits, the year. For example, the third
week of the year 2020 would have a
4-digit DOT date of 0320. Week 01 is
the first full week (Sunday through
Saturday) of each year.
(5) 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.
(6) Tire Ply Material
and number of plies in the sidewall and
under the tread.
(7) Single Tire Maximum Load
Maximum load that can be carried and
The last the maximum pressure needed to
:
support that load when used as a
single. For information on
recommended tire pressure see Tire
Pressure 0 350 and
Vehicle Load Limits 0 210.

Tire Designations

Tire Size
The examples show a typical light truck
tire size.
:
(1) Light Truck (LT-Metric) Tire
United States version of a metric tire
The type of cord sizing system. The letters LT as the first
:
two characters in the tire size mean a
light truck tire engineered to standards
set by the U.S. Tire and Rim
:
Association.
(2) Tire Width
indicates the tire section width in
millimeters from sidewall to sidewall.
(3) Aspect Ratio
indicates the tire height-to-width
measurements. For example, if the tire
size aspect ratio is 75, as shown in
item (3) of the light truck (LT-Metric)
tire illustration, it would mean that the
tire's sidewall is 75 percent as high as it
is wide.
Vehicle Care
Light Truck (LT-Metric) Tire
The
:
The 3-digit number
:
A 2-digit number that
:
347