Owner’s Manual

Black plate (56,1)
GMC Yukon/Yukon XL Owner Manual - 2012 - CRC - 11/8/11
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
:
Narrow 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)
: 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 10‑66.
Vehicle Capacity Weight
:
The number of designated
seating positions multiplied by
68 kg (150 lbs) plus the rated
cargo load. See Vehicle Load
Limits on page 9‑16.
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
capacity weight and the original
equipment tire size and
recommended inflation pressure.
See “Tire and Loading
Information Label” under Vehicle
Load Limits on page 9‑16.