GMC Cadillac CTS 2004 Owner's Manual page 358

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.
There are 6.9 kPa's to one psi.
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.
Normal Occupant Weight: The number of occupants a
vehicle is designed to seat multiplied by 150 pounds
(68 kg). See Loading Your Vehicle on page 4-34.
5-64
Occupant Distribution: Designated seating positions.
Outward Facing Sidewall: The side of a asymmetrical
tire that has a particular side that faces outward
when mounted on a vehicle. The side of the tire that
contains a whitewall, bears white lettering or bears
manufacturer, brand and or model name molding that is
higher or deeper than the same moldings on the
other sidewall of the tire.
Passenger (P-Metric) Tire: A tire used on
passenger cars and some light duty trucks and
multipurpose vehicles.
Recommended Inflation Pressure: Vehicle
manufacturer's recommended tire inflation pressure and
shown on the tire placard. See Inflation - Tire Pressure
on page 5-67 and Loading Your Vehicle on page 4-34.
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.