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Vehicle Safety Standard No. 109. Grades B and A repre-
sent higher levels of performance on the laboratory test
wheel than the minimum required by law.
Tire inflation pressures
Proper tire inflation pressure is essential to the safe and
satisfactory operation of your vehicle. Three primary
areas are affected by improper tire pressure:
1. Safety
Under-inflation increases tire flexing and can result in tire
failure. Over-inflation results in a tire losing its ability to
cushion shock. Objects on the road and potholes could
cause tire damage that may result in tire failure.
2. Economy
Improper inflation pressures can cause uneven wear
patterns to develop across the tire tread. These abnormal
wear patterns will reduce tread life, resulting in a need
for earlier tire replacement.
Under-inflation also increases tire rolling resistance and
results in higher fuel consumption.
3. Ride comfort and vehicle stability
Proper tire inflation pressures contribute to the excellent
ride quality built into your vehicle. Over-inflation pro-
duces an uncomfortable and jarring ride.
Under-inflation can produce a feeling of sluggish response.
Unequal inflation pressures can produce erratic and
unpredictable vehicle response to steering maneuvers.
The proper tire pressure for your vehicle is listed on a
placard attached near the door sill striker on the driver’s
side ‘‘B’’-Pillar.
The recommended inflation pressures should be followed
when the specified tires are installed.
Item Tire size Front Rear
Normal tire P205/60R16 91H 32 psi (220 kpa)
P215/50R17 90H 32 psi (220 kpa)
Compact spare tire T125/70D16 60 psi (420 kpa)
The pressures should be checked and adjusted, if neces-
sary, at least once a month.
Tire pressures should be checked more often when weather
temperatures vary widely, because tire pressures vary with
outdoor temperatures. Inflation pressures specified on the
placard are always “cold inflation pressure”.
Cold inflation pressure can be measured after the vehicle has
been stationary for at least three hours or driven less than
340 MAINTENANCE
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