The contact owns a 2018 Ford Taurus. The contact stated that while driving up a ramp at 65 mph, the transmission, brakes, steering, and engine became inoperable, and the vehicle shut down and crashed into the side railing. The vehicle tipped on its side. There were no warning lights illuminated. The child passenger who was using a car seat positioned in the rear passenger seat sustained injuries that left the occupant in a coma, and medical attention was provided. The other occupants in the driver and passenger front seats and the occupant in the driver's rear seat sustained minor cuts but medical attention was not provided. There was no reported fire, police report, or air bag deployment. The vehicle was towed to a junkyard. The contact called the local dealer, but the vehicle was not diagnosed or repaired. The manufacturer was called but the contact was unable to notify them about the failure. The failure mileage was approximately 155,498.