See also:

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

Low tire pressure warning light (U.S.-spec. models)
When the ignition switch is turned to the “ON” position, the low tire pressure warning light will illuminate for approximately 2 seconds to check that the tire pressure monitoring system ( ...

Immobilizer system
This light blinks approximately 60 seconds after the ignition switch is turned from “ON” position to the “Acc” or “LOCK” position or immediately after the key is pulled out. Refer to “Immobilizer” ...