10-48 Vehicle Care
(D) Tire Identificat ion
Number (TIN)
: The letters and
numbers following the DOT
(Department of Transporta tion)
code are the Tire Identification
Number (TIN). The TIN shows
the manufacture r 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 10‑64.
(G) Maximum Cold Inflation
Load Limit
: Maximum load that
can be carried and the
maximum pressure needed to
support that load.
Compact Spare Tire Example
(A) Tire Ply Material: The type
of cord and number of plies in
the sidewall and under the tread.
(B) Temporary Use Only
:
The compact spare tire or
temporary use tire has a tread
life of approximately 5 000 km
(3,000 mi) and should not be
driven at speeds over 105 km/h
(65 mph). The compact spare
tire is for emergency use
when a regular road tire has lost
air and gone flat. If the vehicle
has a compact spare tire,
see Compact Spare Tire on
page 10‑93 and If a Tire Goes
Flat on page 10‑68.
(C) Tire Identificat ion
Number (TIN)
: The letters and
numbers following the DOT
(Department of Transporta tion)
code are the Tire Identification
Number (TIN). The TIN shows
the manufacture r and plant
code, tire size, and date the tire
was manufactured. The TIN is
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