GMC 2012 Sierra - Manual (Page 443)

Black plate (57,1) GMC Sierra Owner Manual - 2012 - CRC - 11/15/11
Vehicle Care 10-57
Maximum Inflation Pressure :
The maximum air pressure to
which a cold tire can 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
68 kg (150 lbs). See Vehicle
Load Limits on page 9‑16.
Occupant Distribution :
Designated seating positions.
Outward Facing Sidewall : The
side of an 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 as shown
on the tire placard. See Tire
Pressure on page 10‑58 and
Vehicle Load Limits on
page 9‑16.
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.