Need help! Stock Alarm keeps going off.

[zumi]

I have a stock 2008 MS3 GT and I need some help.

1) Car is sitting in my garage, locked...and all of sudden the car alarm started going off by itself. I disarm it with 'unlock' on my key fob.
2) 15 minutes later it starts going off again! (bang) This time the key fob doesn't disarm it immediately, turning the key in the door to unlock doesn't disarm it. Eventually the fob disarm works.
3) I now know that something is wrong, so I work to disconnect the battery (I live in a quiet complex and can't deal with this at 9pm at night). It probably went off another two times while I was under the hood.

4) One catch: Yesterday I went hiking and I forgot I had my key fob in pocket, so it got submerged multiple times in salt water. Everything worked fine though after my hike.

******
Is it possible my key fob is acting up (panic button) after being in salt water?

What should I check? I can disconnect my fob battery tomorrow, reconnect my car battery and see if it happens again, but that doesn't immediately prove to me that the fob was the source of the the problem.

Any help much much appreciated! Thanks.

 

[Joe Vance]

Actually taking out the battery in the fob will determine weather or not it is the keyfob, i dont see why else it would just randomly go off - that would be my first guess, dunking electronics in water does no good for them

 

[n3os]

Actually taking out the battery in the fob will determine weather or not it is the keyfob, i dont see why else it would just randomly go off - that would be my first guess, dunking electronics in water does no good for them

i have same problem and im googling. try this link

 

[johnacjo]

If the proper care of electronics is not taken then it's the time for replacement. Check out the back side whether there is the battery problem or there is the another defect. Sometimes the machine inside the stock alarm is stop or hanged so concern it for repairing.