See also:

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

SI-DRIVE indicator light (STI)
1) Intelligent (I) mode 2) Sport (S) mode 3) Sport Sharp (S#) mode This light indicates the current SI-DRIVE mode. For details of SI-DRIVE mode, refer to “SIDRIVE (STI)”. ...

Modification of your vehicle
CAUTION Your vehicle should not be modified other than with genuine SUBARU parts and accessories. Other types of modifications could affect its performance, safety or durability, and may even vio ...