GMC 2008 Acadia - Manual (Page 364)

(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 5-67.
(G) Maximum Cold Inflation Load Limit :
Maximum load that can be carried and the
maximum pressure needed to support that load.
(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 5-88 and If a Tire Goes Flat on
page 5-71.
(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.
Compact Spare Tire Example
5-50