The contact owns a 2023 Ford Maverick. The contact stated that while reversing, the back-over camera screen froze. The contact heard someone yelling and became aware there was a parent and child walking behind the vehicle. There were no warning lights illuminated. The contact received notification of NHTSA Campaign Number: 24V684000 (Back Over Prevention); however, the part to do the recall repair was not yet available. The local dealer was not contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The failure mileage was approximately 31,595. VIN tool confirms parts not available.