I was driving on a suburban city street in a straight line with no cars or any other obstructions ahead of me or behind me. without warning, the car engaged its emergency braking throwing my daughter and me forward violently into our seat belts. when i fell back, the dashboard was showing me a proximity warning but again nothing was anywhere near our car. the servicing dealer said they didn't find any error codes and so there was nothing they could do. this hasn't happened again (yet) but the cameras all around the car that engage for parking and in reverse are constantly going out and/or the vehicle mmi system randomly retracts into the dash while driving.