My wife and I were out driving looking at Christmas lights a few weeks ago and I tried to reverse the car with no other cars around but the car did an emergency

My wife and I were out driving looking at Christmas lights a few weeks ago and I tried to reverse the car with no other cars around but the car did an emergency stop because the lights confused the system into thinking someone was behind me or going to cross behind me. Automatic can be good but also too easily fooled.