Safety and convenience features do not work well and not consistent. The back up rear sensor only beeps sometimes. Was trying to get out of a cramped underground parking lot and almost damaged my car thinking I had more space because the sensors did not beep. I turned them off and on and tested again and did not work. Then the next day it started beeping again. The video I added to this complaint is one I just took quickly. If I back up and go forward enough times it shows how inconsistent these features are. Even the blind spot detectors don't work sometimes.