NHTSA Complaint #11483563 — 2021 TESLA MODEL Y

Multiple incidences of phantom braking while using cruise control/autopilot (not full self driving) traveling to/from Sacramento, CA and Park City, Utah on August 13th and 19th. This has happened previously while traveling to/from Sacramento, CA and Napa, CA. Unexpected hard braking on the highway at speeds of 55-85 mph) for no apparent reason is a hazard to the driver/passenger as well as any nearby vehicles. It causes undue fright, motion sickness, whiplash, and potential accidents. I contacted Tesla and they evaluated the car remotely and said they found nothing wrong. Yes, the car is available anytime for an inspection. No, the car or components have not been inspected by anyone, except as noted above by Tesla's service department. There were no warning lights/messages. This has been a problem for at least 6 months. It just became more evideent on our trip to/from Utah.