See also:

Air inlet selection button
ON position (recirculation): Interior air is recirculated inside the vehicle. Press the air inlet button to the ON position. The indicator light will illuminate. Place this button in the ON posit ...

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. ...

Shock sensors (dealer option)
The shock sensors trigger the alarm system when they sense impacts applied to the vehicle and when any of their electric wires is cut. The alarm system causes the horn to sound and the turn signal ...