NHTSA Complaint #11467543 — 2021 TESLA MODEL Y

While using the autopilot (not full self driving feature) on the highway, I have experienced multiple inatances sudden braking for no reason. No vehicle has been in front of me in these instances and it has occurred most often on undivided highways and highways where there is a hill. This has made engaging the autopilot dangerous as there are cars behind me and I could have been rear-ended on multiple occasions. Additionally, while driving manually on city streets where there are stop signs, there have been multiple instances where the vehicle has given me a forward collision warning because I am slowing down to a vehicle that is ahead of me at the stop sign. This has most often happened on uphill and downhill instances where there are stop signs.