Hummer 2008 H3 Owner's Manual page 314

(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 5-74.
(G) Maximum Cold Inflation Load Limit
Maximum load that can be carried and the
maximum pressure needed to support that load.
For information on recommended tire pressure
see Inflation - Tire Pressure on page 5-62
and Loading Your Vehicle on page 4-42.
5-56
The type of cord and
:
:
Tire
(A) Tire Size
of letters and numbers used to define a particular
tire's width, height, aspect ratio, construction
type, and service description. See the "Tire Size"
illustration later in this section for more detail.
Light Truck (LT-Metric) Tire
The tire size code is a combination
: