The contact owns a 2017 BMW X3. The contact stated that while driving at an undisclosed speed, the vehicle inadvertently lost motive power. The contact was able to pull over to the shoulder of the roadway, where the vehicle failed to restart. The check engine warning light was illuminated. The vehicle was towed to the dealer, who diagnosed a failure with the fuel pump. After investigating the failure, the contact related the failure to NHTSA Campaign Number: 21V586000 (Fuel System, Diesel); but the VIN was not included. The manufacturer was notified of the failure, a case was opened, and the contact was referred to the NHTSA Hotline for assistance. The failure mileage was unknown.