Subaru 2009 IMPREZA Service Manual page 2242

WHEEL AND TIRE SYSTEM
Symptoms
Abnormal tire wear
General Diagnostic Table
Possible cause
Improperly inflated tire.
Improper wheel balancing
Front wheel alignment
Rear wheel alignment
WT-16
Corrective action
Adjust the tire pressure.
Check the wheel balance. <Ref. to
WT-9, ADJUSTMENT, Wheel Bal-
ancing.>
Check the front wheel alignment.
<Ref. to FS-7, INSPECTION, Wheel
Alignment.>
Check the rear wheel alignment.
<Ref. to RS-8, INSPECTION, Wheel
Alignment.>