Tire Pressure - Chevrolet 2013 Express Owner's Manual

10-56 Vehicle Care
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 64.
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 68.
Narrow
:
Vehicle Capacity Weight
The number of designated
seating positions multiplied by
68 kg (150 lb) plus the rated
cargo load. See Vehicle Load
Limits on page 9 10.
Vehicle Maximum Load on the
A tire 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 10.
:

Tire Pressure

Tires need the correct amount
of air pressure to operate
effectively.
Load on an individual tire
A label
: