The 2017 Ford edge was parked in a parking spot, the shifter visually and physically engaged in the park position. Exited the vehicle went into the store. A vehicle passing by behind the Ford edge, noticed it slowly rolling backwards and did not stop colliding with the back of her truck. The Ford edge still showed as it was in park during this occurrence After for the research, it does appear that Ford does have an issue with this and it is a known issue just no specific recall issued for this specific Ford edge