See also:

Operation
If the driver and/or front passenger have/ has not yet fastened the seatbelt(s) when the ignition switch is turned to the “ON” position, the seatbelt warning light(s) will flash for 6 seconds, to ...

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

All-Wheel Drive warning light (AT and CVT models)
WARNING Continued driving with the AWD warning light flashing can lead to powertrain damage. If the AWD warning light flashes, promptly park in a safe place then check whether all four tires ar ...