Tire designations, Tire designations -52 – CHEVROLET 2010 Avalanche User Manual

Page 396

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Chevrolet Avalanche Owner Manual - 2012

10-52

Vehicle Care

(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

:

The type

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
tire pressure see Tire Pressure
on page 10‑56
and Vehicle Load
Limits on page 9‑16
.

Tire Designations

Tire Size

The examples show a typical
passenger vehicle and light
truck tire size.

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.

(B) Tire Width

:

The three‐digit

number indicates the tire section
width in millimeters from
sidewall to sidewall.

(C) Aspect Ratio

:

A two‐digit

number that indicates the tire
height‐to‐width measurements.
For example, if the tire size
aspect ratio is 75, as shown in
item C of the tire illustration, it
would mean that the tire's
sidewall is 75 percent as high as
it is wide.

(D) Construction Code

:

A

letter 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.

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