NHTSA Complaint #11447611 — 2021 LINCOLN CORSAIR

Went to unlock vehicle but found it was unlocked. Tried to start car and noticed there was nothing in the car that worked, interior lights, dashboard monitors, all computer functions were out and could not open the rear hatch. Called Lincoln assist and they sent AAA. They tested battery and it was good, tried a jump start and nothing happened. Saw on the internet (Lincolnforum.org) that disconnecting the battery and reconnect the entire system will return to normal. Tried this with the tech from AAA and it worked. 2 hours on the road after the incident stopped for gas and shut off the car and when I tried to start the car the whole incident was back. Again had to disconnect battery and reconnect and it returned to normal. Please find out what is causing this before it shuts down while driving???