Now this morning went out to warm up the car for the wife, open the drivers side car door and the alarm starts going off, nothing I did with the master key with red dot would help.
Did you try the other two locks? All will operate the alarm, but for obvious reasons one of them gets a _lot_ more wear! I think it was pure coincidence. This, btw, is one big reason I've installed a keyless remote in our SDL. Saves wear and tear on the locks. -- Jim