Today 4/7/23 My 2017 Toyota Sienna accelerated on its own. I was driving my 4 children to school and we were at a stop light. When I took my foot of the brake to start making a turn the car gunned it around the corner. It scared everyone in the car half to death. Thankfully no one was hurt but it looks like others on here haven't been so lucky with this issue. I hope toyota does the right thing a d fixes this issue before more people die.

- San Marcos, CA, USA

The contact owns a 2017 Toyota Sienna. While driving approximately 25 mph, the vehicle hesitated and accelerated forward. The contact stated that the failure occurred at least once a day for the past three months. The vehicle was not taken to a dealer or an independent mechanic for diagnostic testing. The manufacturer was not notified of the failure. The vehicle was not repaired. The approximate failure mileage was 5,500.

- Chicago, IL, USA

2017 Toyota Sienna. Consumer writes in regards to transmission issues. Consumer sent additional correspondence. The consumer stated the steering was imprecise. The vehicle wandered on the road. The heater/ac fan had an annoying noise. The vehicle would not accelerate immediately upon depressing the pedal. The transmission would constantly shift up and down on very small highway inclines.

- Madison, WI, USA

Wife was driving vehicle, while turning off of a main road with vehicle in drive the vehicle stopped accelerating with foot depressing gas pedal. Pulled vehicle over, turned on and off couple of times, each time shifting from park to drive and attempting to accelerate, but vehicle had no response. I came to switch vehicles and send her home with the kids. I started vehicle and attempted drive and reverse, neither of which responded. I then switched to standard transmission mode, the vehicle then would drive and I took it home. I turned vehicle off and on, attempted drive and reverse in automatic transmission mode, and the vehicle was working fine again as if nothing ever happened. Took vehicle to dealer, they could not "duplicate the problem" and the vehicle passed health check. Apparently the issue reset itself when I switched the tranny from auto to standard. No fix has been implemented. This occurred at 2122 miles. Then just today I was driving down the road and the heater came on full blast, temp. Reading 77, all on its own without me touching anything. Will be taking it to dealer today.

- Jeannette, PA, USA

The contact owns a 2017 Toyota Sienna. The contact stated that while the accelerator pedal was depressed, the vehicle failed to respond. In addition, the vehicle was shifted into park then into the drive position and restarted the vehicle but still the vehicle failed to respond. The contact mentioned the accelerator pedal was depressed with force and the vehicle started to operate however, an abnormal grinding noise was coming from underneath the vehicle. The vehicle was towed to a bill fox Toyota at 755 S rochester rd, rochester hills, mi 48307 where the failure was undetermined. The manufacturer was notified of the failure. That approximate failure mileage was 2,873.

- Rochester Hills, MI, USA

Our 2016 Sienna which we purchased last may accelerated on it's own on 2/16/2017 going through our South outside wall and master bathroom of our house. My husband left the van in the driveway, unloaded the groceries, then got back into the van, started it, put his foot on the brake, shifted to drive and with his foot on the brake the van accelerated into the the garage. We have an extended garage which had an office area and it proceeded to push the oak desk through the South East outside wall and master bath. As it continued to accelerate and burn rubber on our finished garage floor, with his foot still on the brake slammed it into reverse. The Sienna shot out of the garage, headed down our drive, into our lawn and over our winter snow stakes. Knowing it was not stopping and the brakes were not working other than letting him put the car into gear, he once again slammed it into drive. The Sienna shot into the garage a second time, hitting the S. E. wall and yet again continued to burn rubber on our floor as it pushed the desk further though the wall. Once again, completely beside himself my husband slammed it into reverse and when outside it finally stopped after he stomped on the breaks with all his might! the air bag did not deploy nor did the brakes every begin to work to slow it down. We will never drive this vehicle again and it is being stored at carlson Toyota until we know what Toyota headquarters intends to do about this problem. We also need to know what we are to do beings our Sienna was paid for and now it is worthless to us.

- Ham Lake, MN, USA