GMC Canyon Owner's Manual page 376

Radial Ply Tire: A pneumatic tire in which the
ply cords that extend to the beads are laid at
90 degrees to the centerline of the tread.
Rim: A metal support for a tire and upon which
the tire beads are seated.
Sidewall: The portion of a tire between the tread
and the bead.
Speed Rating: An alphanumeric code assigned
to a tire indicating the maximum speed at
which a tire can operate.
Traction: The friction between the tire and the
road surface. The amount of grip provided.
Tread: The portion of a tire that comes into
contact with the road.
Treadwear Indicators: Narrow bands, sometimes
called wear bars, that show across the tread of
a tire when only 1/16 inch (1.6 mm) of tread
remains. See When It Is Time for New Tires on
page 385.
376
UTQGS (Uniform Tire Quality Grading
Standards): A tire information system that
provides consumers with ratings for a tire's
traction, temperature, and treadwear. Ratings are
determined by tire manufacturers using
government testing procedures. The ratings are
molded into the sidewall of the tire. See Uniform
Tire Quality Grading on page 389.
Vehicle Capacity Weight: The number of
designated seating positions multiplied by
150 lbs (68 kg) plus the rated cargo load. See
Loading Your Vehicle on page 286.
Vehicle Maximum Load on the Tire: Load on an
individual tire due to curb weight, accessory
weight, occupant weight, and cargo weight.
Vehicle Placard: A label permanently attached to
a vehicle showing the vehicle's capacity weight
and the original equipment tire size and
recommended inflation pressure. See "Tire and
Loading Information Label" under Loading
Your Vehicle on page 286.