I didn't sleep last night because someone's car alarm kept going off and everytime I went to go check to see who's it was it would stop. I eventually found out it was mine.

I keep my car in my garage and unlocked, but last night I forgot to close my hatch.... but the car was unlocked and disarmed... so why/how would it set itself off. Has anyone seen this behavior before where it happens even when it's unlocked? Suggestions?

 

Weak battery. Bad door/hatch switch. Electrical short. Failing BCM.