Subaru WRX & WRX STI Manuals 2013 Impreza WRX & WRX STI Owner's Manual | Page 347

Maintenance and service

. Abnormally low tire pressure (tread
worn at shoulders)

. Abnormally high tire pressure (tread
worn in center)

11-27

the tires. The resulting loss of
vehicle control could lead to an
accident.

& Wheel balance

Rolling resistance is high, so fuel consumption is also higher.

Ride comfort is poor. Also, the tire
magnifies the effects of road-surface
bumps and dips, possibly resulting in
vehicle damage.
If the tire placard shows tire pressures for
the vehicle when fully loaded, adjust the
tire pressures to the values that match
current loading conditions.

WARNING
Driving at high speeds with excessively low tire pressures can cause
the tires to deform severely and to
rapidly become hot. A sharp increase in temperature could cause
tread separation, and destruction of

Each wheel was correctly balanced when
your vehicle was new, but the wheels will
become unbalanced as the tires become
worn during use. Wheel imbalance causes
the steering wheel to vibrate slightly at
certain vehicle speeds and detracts from
the vehicle’s straight-line stability. It can
also cause steering and suspension system problems and abnormal tire wear. If
you suspect that the wheels are not
correc tly balanced, have them checked
and adjusted by your SUBARU dealer.
Also have them adjusted after tire repairs
and after tire rotation.

CAUTION
Loss of correct wheel alignment
causes the tires to wear on one side
and reduces the vehicle’s running
stability. Contact your SUBARU
dealer if you notice abnormal tire
wear.

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