NHTSA Complaint #11443226 — 2021 TESLA MODEL Y

Tesla's autopilot / adaptive cruise control / emergency braking is defective. On multiple occurrences I have had incidents where the vehicle's adaptive cruise control and automatic emergency braking systems have activated inappropriately. In one occurrence I was driving on I-17 through Phoenix in the middle lane. I was beginning to pass a pickup truck pulling a trailer (my front bumper was just behind the trailer) when the car detected this as an imminent collision and applied significant braking. I had to use the accelerator to disable the emergency braking, and this triggered a number of cars behind me having to brake as well. In a second occurrence I was driving on SR-74 westbound in phoenix between I-17 and Lake Pleasant Parkway. This is a two lane road in many sections, and at one point I had a semi truck and trailer coming towards me in the opposite lane and my car detected this as infront of me and applied emergency braking. Thankfully there was no one behind me as the vehicle reduced speed from 65 to 40 before I was able to push the accelerator and resolve the issue. There have been other incidents of it braking in ways that were unexpected and dangerous. What component or system failed or malfunctioned, and is it available for inspection upon request? Auto pilot / adaptive cruise control / automatic emergency braking How was your safety or the safety of others put at risk? See Above Has the problem been reproduced or confirmed by a dealer or independent service center? NO, but is well known among Tesla owners Has the vehicle or component been inspected by the manufacturer, police, insurance representatives or others? NO Were there any warning lamps, messages or other symptoms of the problem prior to the failure, and when did they first appear? NO