Alarm randomly going off!

[chubyball]

We also have this problem few days ago when the wife drove the car out of the States 2k miles for a weekend trip, she kept calling me and complaint about the alarm problem, it keeps going off and she feel embarrass when people look at her.

We tried to disable motion sensor by press lock button twice and it still not work. Finally, I told her not to use the key to lock the car. She had to manual lock from the inside but exit rear door. The car does not goes off any more until she get home.

Now, the car's alarm does not go off any more after I disconnected the switch under the hood, removed it, took it apart, cleaned it, and reinstalled it.