Black plate (50,1)
Cadillac Escalade EXT Owner Manual - 2011
10-50
Vehicle Care
Tire Sidewall Labeling
Useful information about a tire is
molded into the sidewall. The
following illustration is an
example of a typical P
‐
Metric tire
sidewall.
Passenger (P
‐
Metric) Tire
(A) Tire Size
:
The tire size
code is a combination of letters
and numbers used to define a
particular tire's width, height,
aspect ratio, construction type,
and service description. See the
“
Tire Size
”
illustration later in this
section for more detail.
(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) 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.
(D) 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.
(E) Tire Ply Material
:
The type
of cord and number of plies in
the sidewall and under the tread.
(F) Uniform Tire Quality
Grading (UTQG)
:
Tire
manufacturers are required
to grade tires based on
three performance factors:
treadwear, traction, and
temperature resistance.
For more information, see
Uniform Tire Quality Grading on
page 10
‑
66
.
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