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(A) Temporary Use Only: The
compact spare tire or temporary
use tire has a tread life of
approximately 3,000 miles
(5 000 km) and should not be
driven at speeds over 65 mph
(105 km/h). The compact spare
tire is for emergency use when a
regular road tire has lost air and
gone flat. If your vehicle has a
compact spare tire, see Compact
Spare Tire on page 5-71 and If a
Tire Goes Flat on page 5-63.
(B) Tire Ply Material
: The type
of cord and number of plies in the
sidewall and under the tread.
(C) Tire Identification Number
(TIN)
: The letters and numbers
following the DOT (Department
of Transportation) code is 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.
(D) Maximum Cold Inflation
Load Limit
: Maximum load that
can be carried and the maximum
pressure needed to support
that load.
(E) Tire Inflation
: The
temporary use tire or compact
spare tire should be inflated
to 60 psi (420 kPa). For more
information on tire pressure and
inflation see Inflation - Tire
Pressure on page 5-49.
(F) Tire Size
: A combination of
letters and numbers define a
tire’s width, height, aspect ratio,
construction type, and service
description. The letter T as the
first character in the tire size
means the tire is for temporary
use only.
(G) 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.
Compact Spare Tire Example
Service and Appearance Care 5-45