Subaru Legacy Service Manual: Periodic maintenance services

Inspection

1. CHECK FUSE1. Remove the fuse and inspect visually.2. If the fuse is blown out, replace the fuse. ...

A c filter replacement

Refer to “AC” section for A/C filter replacement. A/C Filter > REPLACEMENT ...

Other materials:

System alarm operation
The alarm system will give the following alarms when triggered.  The vehicle's horn will sound for 30 seconds.  The hazard warning flashers will flash for 30 seconds. If any of the doors (or the rear gate/trunk lid) remains open after the 30-second period, the horn will con ...