The contact owns a 2021 Ford Explorer. The contact stated that while at a stop sign, the vehicle lost automotive power and failed to restart. No warning lights were illuminated. The vehicle was taken to a local dealer, where it was diagnosed; however, the cause of the failure was undetermined. The vehicle was not repaired. The contact stated that several unknown warning lights were illuminated. The manufacturer was notified of the failure and referred the contact to the NHTSA Hotline for assistance. The failure mileage was approximately 74,000.