Tire Designations - GMC Savana 2016 Owner's Manual

254 Vehicle Care
manufactured date. The first two
digits represent the week
(01-52) and the last two digits,
the year. For example, the third
week of the year 2010 would
have a four-digit DOT date
of 0310.
(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
:
of cord and number of plies in
the sidewall and under the tread.
(7) 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
tire pressure see Tire Pressure
0 258 and Vehicle Load Limits
0 170.

Tire Designations

Tire Size
The following examples show
the different parts of a tire size.
Passenger (P-Metric) Tire
(1) Passenger (P-Metric) Tire
The type
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.
(2) Tire Width The three-digit
:
number indicates the tire section
width in millimeters from
sidewall to sidewall.
(3) Aspect Ratio
number that indicates the tire
height-to-width measurements.
For example, if the tire size
aspect ratio is 75, as shown in
item 3 of the illustration, it would
mean that the tire's sidewall is
75 percent as high as it is wide.
(4) Construction Code
code is used to indicate the type
of ply construction in the tire.
The letter R means radial ply
construction; the letter D means
diagonal or bias ply
:
construction; and the letter B
means belted-bias ply
construction.
(5) Rim Diameter
the wheel in inches.
(6) Service Description
characters represent the load
index and speed rating of the
A two-digit
:
A letter
:
Diameter of
:
These
: