The contact owns a 2015 Chevrolet Silverado 2500. The contact stated while driving approximately 65 MPH, the vehicle stalled. The contact stated there was no warning illuminated. The contact had the vehicle towed to a local dealer, where it was diagnosed and determined that the high-pressure diesel fuel pump had failed, and the entire fuel system needed to be replaced. The vehicle was repaired. The manufacturer was informed of the failure and referred the contact to the NHTSA Hotline to report the failure. The failure mileage was approximately 190,000.