It sounds like you have a driver side door latch that is out which has a micro switch which disables the alarm. I would replace it and see what happens.
You can try to manually lock (now "unlocked doors") each door on your car (meaning: open each door, lock each with your fingers).
Then go to the drivers door and unlock it manually with the key, from outside
This supposedly will reset it
If it does not work, don't fret, someone else will be along to correct me!
Friday, June 3rd, 2011 AT 3:58 PM