2017 Toyota Prius Vehicle speed control Problems

“We were stopped at a traffic signal going north. When the light turned green, the car in front of us started to go and all of the sudden, our car went into rapid acceleration. We could not stop the car. It crashed into the car in front of us. We tried jamming on the breaks and turning off the ignition, but could not get control. Because we were heading uphill, the car finally came to a stop. We were on a city street at a stop signal.”

“The vehicle started normally but when I reached about two blocks from my house, the Prius started to act as if the electric motors were not engaging. The engine did not engage either and the gas pedal was unresponsive. The first time this occurred, I was stuck in the middle of a 4-way intersection until I shut down the vehicle and restarted it. After I restarted the Prius, it continued behaving erratically. It sounded and felt like the gas motor had engaged but the electric motor had not. …”

“I had an sua (sudden unintended acceleration). I drove up an incline into the driveway of the holiday in in downtown san diego, pulled up into a small circular area/driveway where you can register for your room or pick up or drop off people. My foot was on the brake, I was stopping the car to pick up my daughter and her boyfriend. And the car took off on it's own. I tried desperately to use the brakes, but they wouldn't work, so I kept driving around the circular driveway to keep control of the car while I kept trying to stop the car to no avail. …”

“In moderate to heavy rain with the Toyota dynamic cruise control engaged on the highway between 55 and 70 MPH, the Prius has dangerously accelerated itself towards a car immediately in front of my car and would have created a front-to-rear collision if I was not extremely vigilant and manually braked and canceled the adaptive cruise system within 10-20 feet of the car in front of me. The system seems to operate blindly in moderate to heavy rain and will accelerate to user-set speed even when a car is traveling slower immediately in front of my vehicle. …”

“Car was on 2 lane blacktop in 40 MPH zone driving apx 35 MPH, a female, responsible owner/driver age 79 was driving when suddenly,without any warning,comes to near halt in road and pulls/hard to right hand side of shoulder off the road. Driver had no control over direction or speed before finally able to stop car on top of ditch. Driver was able to get car to stall/stop engine before reaching ditch and possibly a turnover. …”