2021 Toyota Rav4 Backup System Problems

While driving to friends house, the collision warning popped on screen 1 or 2x but no vehicle was close to front of the car. When I turned into driveway and pulled onto yard to park the collision warning went off and red screen flased and I tried to brake but brakes would not depress. The car suddenly lurched forward quickly and I tried to steer away but it slammed into a line of cars with great force. I crashed into the parked car in front of me with such force it pushed a line of 4 cars. I had mild issues after crash: Whiplash, neck pain, head pain, and soreness. The RAV-4 had passed inspection with the dealer with no issues, The car had less than 15K miles driven. The collision warning lights seemed to start to have issues the day of the crash; approximately 15 min before the crash. Post-note for 3/27/2023 - we picked up from the collision repair and the car and the collision control was still flashing in error - and will be taken back to Toyota dealer on 3/28/2023 to have them read the computer. Other similar incidents have been reported for 2021 RAV-4 - and a similar recall went out for Toyota Prius we found after the crash.