Subaru WRX & WRX STI Manuals 2010 Impreza WRX & WRX STI Owner’s Manual | Page 357

Maintenance and service

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

& Wear indicators

NOTE
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.
*: The suspension system is designed to hold
each wheel at a certain alignment (relative to
the other wheels and to the road) for optimum
straight-line stability and cornering performance.

cause the vehicle to hydroplane.
The resulting loss of vehicle control
can lead to an accident.

NOTE

& Wheel balance
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
correctly balanced, have them checked
and adjusted by your SUBARU dealer.
Also have them adjusted after tire repairs
and after tire rotation.

11-37

For safety, inspect tire tread regularly
and replace the tires before their tread
wear indicators become visible.

& Tire rotation direction mark

1)
2)
3)

New tread
Worn tread
Tread wear indicator

Each tire incorporates a tread wear
indicator, which becomes visible when
the depth of the tread grooves decreases
t