NHTSA Complaint #11442036 — 2021 TESLA MODEL Y

On September 26, on our first long distance trip with our just delivered (9/17/2021) Tesla Model Y, during daylight nice weather driving with Adaptive Cruise Control switched “On”, on at least 6 occasions (strait roads, freeway and non-freeway driving), the car suddenly, without any reason, violently slammed on the brakes. These events are hair raising for me and passengers, let alone for a driver behind me. If he/she does not pay attention at that very moment, the result could even be disastrous. I would never have expected such a serious safety issue with a Tesla. Suffice to say that this is absolutely unacceptable to me. When checking out the web, many people reported similar issues with their Model Y vehicle. I had the car checked-out at the Tesla Lynnwood, WA, Service Center on September 30, 2021, and when picking-up the car I was informed that no anomalies had been found. At later dates, similar emergency braking occurred without any reason, while driving with Adaptive Cruise Control. Obviously, I do not trust this Cruise Control system one bit anymore, and no longer use it. I have written a letter to Tesla (11/12/2021) requesting a time frame when a solution can be expected, but so far, I have not received any word from them. I sincerely feel that Tesla should temporarily disable this Adaptive Cruise Control feature on ALL Model Y vehicles currently on the road and those still to be delivered (to unaware new owners), until this serious safety issue has been resolved.