Does anyone know why the auto door lock button would stop working? I can manually lock the door, or use the remote but not the auto door lock. thanks
Are you using a switch on the door? The switch may have gone bad but my first guess is the wires running from the door jam to the door. Likely the one supply power is broken from the bending that happens every time the door is opened or closed.
If the remote fob works, it has to be the switch in the door.
The programming for the auto-lock mode may have changed somehow. The dealer would need to check that I think.