GMC 2007 Yukon XL Owner's Manual page 488

Bias Ply Tire: A pneumatic tire in which the plies
are laid at alternate angles less than 90 degrees
to the centerline of the tread.
Cold Inflation Pressure: The amount of air
pressure in a tire, measured in pounds per square
inch (psi) or kilopascals (kPa) before a tire has
built up heat from driving. See Inflation - Tire
Pressure on page 490.
Curb Weight: This means the weight of a motor
vehicle with standard and optional equipment
including the maximum capacity of fuel, oil, and
coolant, but without passengers and cargo.
DOT Markings: A code molded into the sidewall
of a tire signifying that the tire is in compliance
with the U.S. Department of Transportation (DOT)
motor vehicle safety standards. The DOT code
includes the Tire Identification Number (TIN),
an alphanumeric designator which can also identify
the tire manufacturer, production plant, brand,
and date of production.
GVWR: Gross Vehicle Weight Rating, see
Loading Your Vehicle on page 390.
GAWR FRT: Gross Axle Weight Rating for the
front axle, see Loading Your Vehicle on page 390.
488
GAWR RR: Gross Axle Weight Rating for the rear
axle, see Loading Your Vehicle on page 390.
Intended Outboard Sidewall: The side of
an asymmetrical tire, that must always face
outward when mounted on a vehicle.
Kilopascal (kPa): The metric unit for air pressure.
Light Truck (LT-Metric) Tire: A tire used on
light duty trucks and some multipurpose passenger
vehicles.
Load Index: An assigned number ranging from
1 to 279 that corresponds to the load carrying
capacity of a tire.
Maximum Inflation Pressure: The maximum air
pressure to which a cold tire may be inflated.
The maximum air pressure is molded onto
the sidewall.
Maximum Load Rating: The load rating for a tire
at the maximum permissible inflation pressure
for that tire.
Maximum Loaded Vehicle Weight: The sum of
curb weight; accessory weight; vehicle capacity
weight; and production options weight.