The contact owns a 2019 Ford Flex. The contact received notification of NHTSA Campaign Number: 24V951000 (Back Over Prevention); however, the part to do the recall repair was unavailable. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was not made aware of the issue. The contact stated that the rear-view camera had experienced intermittent failures, with the image frozen or distorted. The failure mileage was approximately 74,000. VIN tool confirms parts not available.