Chevrolet HHR 2010 Owner's Manual page 351

(D) Tire Identification Number (TIN)
and numbers following 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.
(E) Tire Ply Material
:
number of plies in the sidewall and under the tread.
(F) Uniform Tire Quality Grading (UTQG)
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 6-72.
(G) Maximum Cold Inflation Load Limit
Maximum load that can be carried and the
maximum pressure needed to support that load.
The letters
:
The type of cord and
:
:
Tire
Compact Spare Tire Example
(A) Temporary Use Only
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 6-105 and If a Tire Goes Flat on
page 6-76.
The compact spare
:
6-57