The contact owns a 2018 Ram 1500. 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 available. The contact stated that the manufacturer exceeded a reasonable amount of time for the recall repair. The manufacturer was made aware of the issue. The contact had experienced the failure while driving approximately 40 MPH. The braking system had failed, causing the grandson to drive off the road and crash into a ditch. The vehicle was towed out of the ditch and driven home. No injuries were reported, and no police report was filed. Later, the grandson discovered that the front passenger side braking system had overheated and was concerned that the front tire had melted. No further information was available. The manufacturer was notified of the failure. The failure mileage was 153,000.