Doors Lock problems of the 2011 Ford Fusion

The contact owns a 2011 Ford Fusion. The contact stated that while the vehicle was parked, the contact was unable to unlock the door from inside the vehicle. The failure recurred four times. The contact purchased the door lock and the door lock was replaced four times. The manufacturer was notified of the failure however, offered no additional assistance. The contact was referred to the NHTSA for assistance. The approximate failure mileage was 30,000.