NHTSA Complaint #11715476 — 2021 FORD MUSTANG MACH E

On Saturday, [XXX], while driving under normal conditions, the vehicle experienced a sudden and complete loss of propulsion without warning. There was no reduced-power mode, no dashboard alert, and no mobile app notification prior to shutdown. The vehicle was subsequently inspected by a Ford dealership. The technician identified an intermittent software-related condition consistent with Ford TSB 26-2005, which documents a fault capable of draining the 12-volt electrical system during vehicle operation. The technician stated the 12-volt battery is not believed to be the root cause. The loss of propulsion occurred while the vehicle was in motion and resulted in a full shutdown. The condition was not preceded by any driver warning or controlled degradation. No driver warning was received after shutdown. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)