The contact owns a 2014 Ram 1500. The contact stated that while the vehicle was parked, the contact attempted to start the vehicle; however, the vehicle failed to start as intended. The vehicle was towed to an independent mechanic where it was diagnosed with a failed high-pressure fuel pump. The contact was informed that the high-pressure fuel pump needed to be replaced. The vehicle was not repaired. The vehicle was towed to the residence. The dealer was made aware of the failure; however, the contact was informed that parts were not available and were on backorder. The contact had received notification of NHTSA Campaign Number: 22V406000 (Fuel system, Diesel); however, the part to do the recall repair was unavailable. 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 provided no assistance. The failure mileage was 150,000. VIN tool confirms parts not available.