Tire size – Cadillac 2011 DTS User Manual

Page 362

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Cadillac DTS Owner Manual - 2011

(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) 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.

(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 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 Inflation - Tire Pressure on
page 6‑57
.

Tire Size

The following illustration shows an example of a
tire size.

(A) 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.

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