GMC Yukon XL Denali Owner's Manual page 366

10-50 Vehicle Care
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
bands, sometimes called wear
bars, that show across the tread
of a tire when only 1.6 mm
(1/16 in) of tread remains. See
When It Is Time for New Tires
on page 10 58.
UTQGS (Uniform Tire Quality
Grading Standards)
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 10 61.
Narrow Vehicle Capacity Weight
:
number of designated seating
positions multiplied by
68 kg (150 lbs) plus the rated
cargo load. See Vehicle Load
Limits on page 9 15.
Vehicle Maximum Load on the
Tire
:
A tire due to curb weight, accessory
:
weight, occupant weight, and
cargo weight.
Vehicle Placard
permanently attached to a
vehicle showing the vehicle
capacity weight and the original
equipment tire size and
recommended inflation pressure.
See Tire and Loading
Information Label under Vehicle
Load Limits on page 9 15.
:
Load on an individual tire
A label
:
The