The contact owns a 2018 Ram 2500. The contact received notification of NHTSA Campaign Number: 24V896000 (SERVICE BRAKES, HYDRAULIC); however, the part to do the recall repair was unavailable. The local dealer was contacted, and it was confirmed that the part was 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 issue. The contact stated that the ABS, Traction Control, Hill Assist, and Parking Assist light warning lights illuminated, and remained illuminated. Additionally, the 4WD was occasionally inoperable. The cause of the failure was not yet been determined. The manufacturer and local dealer were notified of the failure. The failure mileage was 61,000. VIN tool confirms parts not available.