Subaru Legacy intermittent beeping sound when starting and shutting off on Subaru Legacy

Some Subaru Legacy owners report experiencing an intermittent beeping sound during startup and shutdown, which may be attributed to several potential issues. These include a low battery, an open door, or a security system alert. Additionally, a specific three-time beep or honk when pushing the start button could indicate a particular problem with the vehicle. A faulty starter motor, which engages with the engine's flywheel, is another common cause of unusual noises during engine startup. Furthermore, some owners find that the beeping may be linked to a seat belt reminder. To address this issue, it is advisable for owners to consult the owner's manual for troubleshooting guidance and to check for any warning lights. If no indicators are present and the vehicle appears to function normally, seeking a professional mechanic's inspection may be necessary to accurately diagnose and resolve the problem.