Chevrolet 2009 HHR Owner's Manual page 338

Recommended Inflation Pressure
manufacturer's recommended tire inflation
pressure as shown on the tire placard.
See Inflation - Tire Pressure on page 5-61
and Loading the Vehicle on page 4-25.
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.
5-60
Vehicle Treadwear Indicators
:
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 5-69.
UTQGS (Uniform Tire Quality Grading
Standards)
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 5-72.
Vehicle Capacity Weight
designated seating positions multiplied by 150 lbs
(68 kg) plus the rated cargo load. See Loading
the Vehicle on page 4-25.
Vehicle Maximum Load on the Tire
an individual tire due to curb weight, accessory
weight, occupant weight, and cargo weight.
Vehicle Placard
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 the
Vehicle on page 4-25.
Narrow bands, sometimes
:
A tire information system that
:
The number of
:
A label permanently attached
:
Load on
: