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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 5-85 and If a Tire Goes
Flat on page 5-74.
(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 5-60.
(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
5-56