I have a 2005 Volvo XC90 with 120K+ miles. About 2-3 months ago, the car alrm started going off randomly, while sitting in my driveway. Generally it would go off around 9-11 pm, but also at any other time. It has gone off 5 times in a row within 5 mins. It has gone off at 3 AM, 4:10 am, 5:15 am, and other totally random times. It happens anywhere from 2-5 or 6 times from when I get home til I leave in the morning. But here’s the thing…it ONLY GOES OFF IN MY DRIVEWAY. Only. I have taken the fuse out, had the remote starter and alarm disconnected, tried leaving it unlocked, tried parking in a neighbors driveway. It still goes off. I’ve sent all my neighbors letter apologizing and asking for suggestions. Maybe someone got a new electronic device of some sort that’s somehow interferring with my alarm? The time are so random that no one can figure it out. The weather makes no difference. I literally keep my keys in my hand at all times when I’m home so that when the alarm goes off, I can turn it off as quickly as possible. I keep them on the floor outside when showering and in my hand when I go to bed.
The Volvo dealer says he’s seen it 100’s of time and he can fix it for $420, but when I told him it only happens in my driveway, he said he had no idea what the problem could be.
It’s going to a car shop next week to see if they can disable the factory installed alrm but I hear that’s nearly impossible. Does anyone have any suggestions?