When you start up the vehicle, put into gear all the doors lock except for the drivers door. It attempts to lock 3 times because you can hear it clicking. Or when you try to manually lock all the doors they all lock but the drivers door. You have to manually move the lock. But if it is locked and you take it out of gear or use the key fob to unlock it, it will unlock. Been doing this fro about a year now. Finally getting tired of it.