Subaru 2007 Impreza WRX User Manual download pdf (Page 309)

Black plate (317,1)

北米Model "A1920BE-B" EDITED: 2006/ 9/ 19

tread separation, and destruction of

the tires. The resulting loss of

vehicle control could lead to an

accident.

& 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 sys-

tem problems and abnormal tire wear. If

you s uspect 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.

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 perfor-

mance.

& Wear indicators

1) New tread

2) Worn tread

3) Tread wear indicator

Each tire incorporates a tread wear

indicator, which becomes visible when

the depth of the tread grooves decreases

to 0.063 in (1.6 mm). A tire must be

replaced when the tread wear indicator

appears as a solid band across the tread.

WARNING

When a tire’s tread wear indicator

becomes visible, the tire is worn

beyond the acceptable limit and

must be replaced immediately. With

a tire in this condition, driving at

high speeds in wet weather can

cause the vehi cle to hydroplane.

The resulting loss of vehicle control

can lead to an accident.

NOTE

For safety, inspect tire tread regularly

and replace the tires before their tread

wear indicators become visible.

& Tire rotation direction mark

Example of tire rotation direction mark

1) Front

If the tire has the rotation di rection

specification, t he tire rotation direction

mark is placed on its sidewall.

Maintenance and service 11-33

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