Please keep us posted if this works because we are having the same problem. Wife just had a headlight replaced. I was wondering if they disconnected the battery and maybe something didn't reset properly.Just stated three days ago and now is all the time. It is OK if you don't lock the doors. If you do the alarm sounds , lights flash, sometimes the fob will shut it off other times its a few minutes of embarresment.
Ours is a 2005 with 43000