Rear passenger door lock fails to work. A load groaning noise comes from the failing motor that activates the lock. Trying to manually unlock the door only works when you hit the "unlock" button or remote. Add to the frustration of having to manually attempt to unlock the door, in an effort to try and figure out how to fix the lock, the damn button that extends up from the door panel falls off and drops down inside the door panel. Great...gotta love it!