Glossary Of Tire Terminology - Toyota RAV 4 2019 Manual

Temperature A, B, C
■
The temperature grades are A
(the highest), B, and C, repre-
senting the tire's resistance to
the generation of heat and its
ability to dissipate heat when
tested under controlled condi-
tions on a specified indoor labo-
ratory test wheel.
Sustained high temperature can
cause the material of the tire to
degenerate and reduce tire life, and
excessive temperature can lead to
sudden tire failure.
Grade C corresponds to a level of

Glossary of tire terminology

Tire related term
Cold tire inflation pres-
sure
Maximum inflation pres-
sure
Recommended inflation
pressure
Accessory weight
Curb weight
performance which all passenger
car tires must meet under the Fed-
eral Motor Vehicle Safety Standard
No. 109.
Grades B and A represent higher
levels of performance on the labo-
ratory test wheel than the minimum
required by law.
Warning: The temperature grades
of a tire assume that it is properly
inflated and not overloaded.
Excessive speed, underinflation, or
excessive loading, either sepa-
rately or in combination, can cause
heat buildup and possible tire fail-
ure.
Tire pressure when the vehicle has been parked
for three hours or more, or has not been driven
more than 1 mile or 1.5 km under that condition
The maximum cold inflated pressure to which a
tire may be inflated, shown on the sidewall of
the tire
Cold tire inflation pressure recommended by a
manufacturer
The combined weight (in excess of those stan-
dard items which may be replaced) of transmis-
sion, power steering, power brakes, power
windows, power seats, radio and heater, to the
extent that these items are available as factory-
installed equipment (whether installed or not)
The weight of a motor vehicle with standard
equipment, including the maximum capacity of
fuel, oil and coolant, and if so equipped, air con-
ditioning and additional weight optional engine
9-1. Specifications
Meaning
675
9