Chevrolet 2007 Silverado 1500 Pickup Owner's Manual page 549

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 555.
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 559.
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 403.
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 403.
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