Chevrolet 2012 Volt Owner's Manual page 329

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 53.
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 55.
I n f o r ma t i o n P r o v i d e d b y :
Vehicle Care
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 11.
Vehicle Maximum Load on the
Tire Load on an individual tire
:
A tire due to curb weight, accessory
weight, occupant weight, and
cargo weight.
Vehicle Placard
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 Vehicle
Load Limits on page 9 11.
10-45
The
:
A label
: