Tire chains
Tire chains cannot be used on your Impreza, WRX and STI because of the lack of clearance between the tires and vehicle body.
See also:
Checking the brake pedal free play
1) 0.08 – 0.18 in (2 – 5 mm)
Stop the engine and firmly depress the brake pedal several times. Lightly pull
the brake pedal up with one finger to check the free play with a force of less than
2 ...
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). ...
Vehicle Dynamics Control warning light/Vehicle Dynamics Control operation indicator
light
The light illuminates when the ignition switch is turned to the “ON” position
and turns off several seconds after the engine has started. This lighting pattern
indicates that the Vehicle Dynamic ...