The contact owns a 2018 Ram 2500. The contact stated that while driving 30 MPH, the brake pedal was depressed, but the vehicle failed to properly respond and the braking distance became extended, causing the vehicle to crash into the rear of the vehicle ahead. Additionally, the brake pedal was fully depressed and went to the floorboard, but the brakes failed to respond as needed. The vehicle was towed from the scene. A Police report was filed. The contact received notification of NHTSA Campaign Number: 24V896000 (Service Brakes, Hydraulic); and associated the failure with the recall. However, the part to do the recall repair was not yet available. The local dealer was contacted. The contact stated that the manufacturer had exceeded a reasonable amount of time for the recall repair. The manufacturer was contacted by phone and made aware of the failure. The failure mileage was approximately 50,000.