Got back to the dealer to talk to a tech. I understand what that does now. If you lock your mini and go somewhere, and return unlocking it with the fob, if you don't open a door, in a set amount of time it will relock. I have the convenient package and he also showed me how I can't lock the fob in the car without purposely meaning to. He put the fob in the back/trunk and tried to lock the rear door. the horn sounded and the door reopened. Nice feature.