NHTSA complaint #11511287

Owner complaint summary

I used Autopilot on my Model 3 for the first and only time a few weeks ago, and had a terrifying experience with "phantom braking" that could have killed my entire family while going ~75mph on the I-5 near Bakersfield, CA. The I-5 here is split with 2 lanes in each direction, and is straight with no bends. I was driving in the right northbound lane, with Autopilot engaged (adaptive speed control only, no automatic lane-steering). My right foot was off both pedals and two hands were on the wheel. There were no other cars in sight except for a single car driving northbound behind me in the left lane. This car began to pass me on the left, and when its front bumper was aligned with the mid-point of my car (I could just barely see the front bumper through the corner of my eye), my Tesla suddenly automatically slammed on the brakes with absolutely no warning! I immediately clenched the wheel as hard as I could, and had to quickly respond to prevent the wheel from automatically veering to the left. While fighting the wheel to try to keep the vehicle straight, and my family hanging on for their lives, we screeched to a grinding halt at a 45 degree angle facing the left lane. We were extremely lucky to not hit the passing car and fortunately there were no vehicles behind us. I disengaged Autopilot and quickly got out of there so we weren't vulnerable. I speculate that the camera on the left panel between the driver and rear door saw the passing car, and wrongly invoked automatic evasive braking and steering maneuvers in response to a falsely anticipated head-on collision. That's the only reasonable explanation I can come up with. I will not use Autopilot again until "phantom braking" is eliminated. This is a known issue that I've since found mentioned all over the Internet by other Tesla owners. This needs to be fixed hastily before people are killed! We're damn lucky I had both hands on the wheel, otherwise we'd likely be dead! Note: Same report has been sent to Tesla.