This is my fifth Tesla, so i.am very familiar with the Self Driving feature which is mostly good. However, recently I got a Model Y and with in 24 hours I was rear-ended on the freeway! I had the car in Full Self Driving mode (FSD)! For some reason it just braked hard in the middle of my driving however, traffic was backing up. I injured my lower back and neck and I'm now having to go in for therapy and schedule a CAT scan. Luckily the person behind me was fine. After the incident I downloaded the zip disk which records incidences. The car had documented pre and post accident! But the actual incident there is no record... almost like it got wiped out!?!