[XXX] after driving less than 10 min. warning signs flashed on screen. I immediately pulled off the road where the vehicle completely shut down and realized my 2021 Ford Explorer was on fire. Bystanders attempted to put the fire out with fire extinguishers but were unsuccessful. My passenger and I opened our doors, I exited and attempted to open trunk to remove wheelchair but could not (because door is electrical). My passenger flung himself onto the ground until bystanders came with a rolling office chair to remove him away from the burning vehicle. Had the bystanders not been there I do not know how I would have been able to move my passenger (25 year old, 200 lb male) away from the burning vehicle. Fire Marshall could not determine cause of fire because vehicle was completely melted/too damaged. Ford Motor Company reviewed photos I sent to them but claims they could not determine cause of fire. The vehicle was properly maintained with routine oil changes. There were no issues with the vehicle prior to this incident. INFORMATION REDACTED PURSUANT TO THE FREEDOM OF INFORMATION ACT (FOIA), 5 U.S.C. 552(B)(6)