The car had an issue with the 12V battery which caused it to be completely disabled and unresponsive to the key fob and phone as a key. My wife had gotten out of the car without knowing this had happened and went to the rear door to let out our infant son, but the door would not open. We called emergency services and roadside assistance. AAA arrived first and tried to open the lock but were unsuccessful. I had to smash the window to open the door and rescue my son. Emergency services arrived after I had already done this. The only reason I know it was an issue with the 12V battery is because the Ford dealership told me after I had the car towed there for inspection. The only way to open the car in this situation is to use a portable jumper to jump two wires hidden in the bumper which open the Frunk. Then you need to jump the actual battery that is located in the frunk. It ds not have a mechanical release for the doors. This supposed fix is highly dangerous as it requires one to have a readily available jumper and the 12V battery needs to be completely drained in this scenario. In my case, this didnt work even when the Ford technician arrived. The only possible way to get in was to break through a laminated glass window which was incredibly difficult to break even with the correct tool to do it.