NHTSA Complaint #11455116 — 2022 TESLA MODEL Y

I experienced two incidents of phantom braking while making a round trip from Reno Nevada to Sacramento California on Interstate 80 on March 3, 2022. The first incident (approx. 10:15 AM) occurred west bound and west of Donner summit. My speed was approximately 70 MPH traveling in the right lane. Several big rig trucks were parked on the shoulder. There were no cars directly in front of me and one car slightly ahead in the left lane. Autopilot was engaged. Suddenly the car braked violently and reduced speed to under 40 MPH. I retained control and continued driving. In the second incident (Approx. 1:30 PM) my wife was driving east on I 80 (with autopilot engaged) at approximately 70 MPH. As she attempted to change lanes to allow a car to pass to our left, emergency braking again was violently engaged. The car behind us had to take very quick evasive action to avoid a collision. A high speed collision was extremely narrowly avoided. There were no vehicles for hundreds of yards ahead of us nor any parked along the highway and no obstacles on the highway. At the spot where the braking occurred the highway began to slope upward, possibly creating the illusion of an obstacle..