GMC 2016 Sierra Owner's Manual page 404

(8) Temporary Use Only
use a temporary spare tire until
the road tire is repaired and
replaced. This spare tire should
not be driven on over 112 km/h
(70 mph), or 88 km/h (55 mph)
when pulling a trailer, with the
proper inflation pressure. See
Full-Size Spare Tire 0 433.
Light Truck (LT-Metric) Tire
(1) 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,
Only and service description. See the
:
Tire Size illustration later in this
section for more detail.
(2) TPC Spec (Tire
Performance Criteria
Specification)
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.
(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 0 408 and Vehicle
Load Limits 0 269.
(4) DOT (Department of
Transportation)
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
Original digits of the TIN indicate the tire
:
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)
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.
The
:
(6) Tire Ply Material
of cord and number of plies in
the sidewall and under the tread.
Vehicle Care
The last four
:
The letters and numbers
:
The type
:
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