So yesterday at work my alarm randomly went off three times. Then today it randomly went off again.

The car is in plain view and no one was messing with it.

Anyone else experience this?

It sounds like your sensor is too low. Is it cherping when the wind blows too? Yes some people have had this experience too!

Randomly from nothing - no, mine doesn't do that.

Going off every single time a large truck or loud motorcycle passes by - yes. However, most times I park well away from active traffic so it's not been a big enough problem to motivate me to seek the adjustment under the dashboard (especially with a vicious rain/wind storm raging outside my window right now).

This happened to folks who had the "alarm shock sensor upgrade" installed.

Apparently, the sensor is not too good, and it can be adjusted only to oversensitive or not at all sensitive. I remember there was a thread talking about this.

I searched for "alarm sensor upgrade" and found the thread that tells me how to adjust it and I did and it has not spazzed out on me yet since doing it so hopefully that was it.

There is one that parks on the street where I work mot of the time when the street car goes by the alarm goes off. It's pretty funny, though. The street car drives past the physician parking lot and I happened to be outside the other day when the street car went by. I counted 14 different cars that had their alarms all start going off. :rofl:

the factory alarm has a motion sensor? My alarm went off twice today. It woke me up I was pissed. This happened once before a few months ago. My car is completely stock and no one was messing with my car.

Mine was doing that.... going off randomly. Turned out the third party alarm bonnet sensor wasn't quiiiiite set right. Tweaked it and no problems since (touch wood).

Man Had my window smashed alarm didn't go off.....had a bird land on my hood....thing went crazy.....who knows

Man Had my window smashed alarm didn't go off.....had a bird land on my hood....thing went crazy.....who knowsLOL! You must be exaggerating about that. ;) Mine's useless, but not that silly.

Check your key, there is a place on it that can trigger the alarm - if you sit on it or push it accidently the car will go off...

Did you ever consider that ghosts may be trying to steal your ride? Our cars are like by many....of this world or not......