See also:

Checking the brake pedal free play
1) 0.02 – 0.08 in (0.5 – 2.0 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 ...

If the light illuminates constantly
If the light illuminates constantly while driving or does not turn off after the engine starts, an emission control system malfunction has been detected. You should have your vehicle checked by an ...

To enter the passive mode
If you wish to program the passive arming mode, have it done by your SUBARU dealer. ...