The contact owns a 2019 Ford Flex. The contact stated that while driving the vehicle at unknown speeds, the passenger's side rear door panel detached from the vehicle. The contact stated that it was unknown if the panel crashed into another vehicle. The vehicle was taken to the dealer. The vehicle was repaired, however, the failure recurred with the same part, however, the panel was not completely detached, it was loose. The failure recurred when the panel detached and crashed into another vehicle. There were no known injuries. There was no police report filed. The dealer was contacted. The manufacturer was made aware of the failure. The failure mileage was approximately 5,000.