NHTSA Complaint #11450994 — 2015 TESLA MODEL S

System Failure: Adaptive speed control Safety Risk: My 2015 Tesla Model S, at highway speeds, smashed into the rear of a jacked up Ford F250 Pickup. A Head on collision at highway speeds put my wife (and dog) and I at great risk. Has the problem been reproduced or confirmed by a dealer or independent service center? I am unsure if or how Tesla is dealing with the problem of adaptable speed control failure. Has the vehicle been inspected? Yes. Dan's Paint & Autobody and USAA Insurance Company adjuster My accident happened in the southbound passing lane at mile marker 178 on I-10, south of chandler on the Gila River Community in Maricopa/Pinal County It was dark outside with heavy traffic in both southbound lanes. My software version was 2021.40.6 I had the distance between cars at the closest setting , and had the adaptive speed control set at ~75. I was attentive with both hands on the wheel, eyes forward watching traffic with my wife whom was also watching the traffic. Without warning a Ford F250 stopped hard in front of me and my adaptive speed control did not react. The few beats I gave the adaptive speed control to respond first cost me precious braking time. I did hit my abs brakes and could feel the vibration as they attempted to slow down, but it was too late. I submarined under the bumper of the truck at a very high speed. There was no warning lamps, messages at the time of the accident. There was one early symptom that I recall. There was a Tesla software update a few days before the collision. On 11/27/22 before leaving for my trip, the dash screen to the far left did not display the map which it usually does when you set the GPS to map the path. I rebooted with the steering wheel toggles, and the display returned to normal. There were no other software malfunctions that I recall prior to the adaptive speed control failure.