Alarm going off
Little background first, I have had a 1993 SSEi for about 8 months now, and it does not have an aftermarket alarm system installed.
Three days ago I had just came out from a store and unlocked my car doors and to my surprise an alarm started going off (headlights flashing, horn honking). The car would still start and was driveable while the alarm was going off. The alarm stopped after what seemed like a couple of minutes. I arrived home, opened the door, and the alarm started going off again (stopping after approximately one minute).
Well I used the car today (first time since) and everything is fine. I asked my mechanic about it and he thinks it may be something to do with the factory security system, related to the door locks, but that I would have to take the car to a dealer for them to check it. I was just wondering if anyone has experienced this before, or has any ideas what it could be? Thanks in advance.