Subaru 2004 Baja Owner's Manual page 103

Keys and doors
2. Remove the key from the ignition switch.
3. Open the doors and get out of the vehicle.
4. Make sure that the engine hood and switchback
door are locked.
5. Close all doors.
1) Press to Arm the system.
2) Press to Disarm the system.
2-16
1) Security system indicator light
6. Briefly press the "LOCK/ARM" button (for less than
two seconds). All doors will lock, an electronic chirp
will sound one time, the turn signal lights will flash one
time and the indicator light starts flashing slowly (ap-
proximately once every two seconds).
If any of the doors (except the switchback door) is not
fully closed, an electronic chirp sounds five times, the
turn signal lights flash five times to alert you that the
doors are not properly closed. When you close the
door, the system will automatically arm and doors will
automatically lock.