The contact owns a 2019 Lincoln MKT. The contact received notification of NHTSA Campaign Number: 24V951000 (Back Over Prevention); however, the part to do the recall repair was not yet available. The dealer was contacted and confirmed that parts were not yet available. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the failure but was unable to confirm when parts would be available. The contact had not experienced a failure. VIN tool confirms parts not available.