2017 Toyota Prius Prime

I was driving in behind several cars on a city street about 30 mph. The cars ahead slowed quickly. The automatic braking system came on suddenly and completely and applied the brakes on its own with no warning red flash. It locked the brakes and the wheels skidded on the pavement I had no control over this at all I tried tapping lightly to stop the skid. I was about 10-12 feet away from the vehicle ahead of me when the car stopped. I did have some additional stopping room but had no control over the braking system at all if I had been on wet pavement the skidding and “hopping” would have been worse.

-The following systems malfunctioned all at the same time on 2021-07-23 at approximately 5:00pm CDT traveling at ~70mph on the interstate in normal conditions in HV system mode: -Low Braking Power -ABS Control System Malfunction -Lane Departure Alert Malfunction -Traction Control Malfunction -Pre-Collision System Malfunction -This is available for inspection upon request, if loaner vehicle is provided and covered. -My girlfriend and I were put at risk due to multiple safety systems malfunctioning, which drastically increased chances of an accident -The vehicle has been diagnosed by a certified Toyota repair shop, and the issue could not be replicated nor found by them. I am also unable to replicate the malfunction. See attached photos. -The vehicle has been inspected three times in the past 30 days by Carvana, Beneficial Automotive in Moore, OK, and Fowler Toyota in Norman, OK. None found this issue. -See attached for the instrument warnings. ICS warning, ABS, traction control, check engine, brake malfunction lights and Multi-Information Display errors all illuminated at the same time while traveling at highway speeds.