2014 Toyota Sienna Vehicle speed control Problems

“Just before the vehicle comes to a full stop, there is unintended acceleration and I could see even the RPM(scale) to spike temporarily. This has been happening every time when outside temp is cold and vehicle is driven with cold or slightly above cold engine temperature. There is a risk of hitting another vehicle or meeting accident if misjudge my braking because of this problem. However it does it even on highway under normal temperature while I'm braking or slowing down.”

“On saturday, june 6, 2015, my 2014 Toyota Sienna limited automatically brake with very significant force while the cruise control was engaged at approximately 45 MPH. No vehicles or obstacles were ahead and I was driving on a straight and relatively level street that has a 45 MPH speed limit. This problem also occurred many, many times in the first several months after purchasing this vehicle new in april 2014. …”

“My 2004 Toyota Sienna has problems with the vsc taking over the vehicle at different times and there is no problem. It slows you down fast and you have no control. Bells ring and lights flash, then it will finally go off. It is very dangerous. I have read forums of other people having the same problem. Some say Toyota fixed it for free. Others say dealers want over $800. To fix it. Some say it is a sensor issue. Others say a new sensor did not fix the problem. …”

“3 times this year, when slowing to a stop with my foot on the brake, the car suddenly accelerated, requiring me to apply as much brake pedal pressure as I could, as well as shifting to neutral to stop the car. This has occurred once when coming up to a stop sign, and twice while pulling into a parking space. Both times when pulling into the parking space, I was barely able to stop in time, almost hitting a car in the space in front of me. After the last time this occurred (7/3/2020), the car was taken to st. Charles Toyota on 7/6, where they found nothing wrong with the vehicle. …”

“I parked my car on an upward inclining driveway and left it in idle. I went inside the house to go and get my dog and speak to my in-laws. I brought the kennel out to the car, lifted the tailgate and put the kennel in. I went back in the house, got the dog food, put the dog food in the tailgate. I went back inside and was speaking to my in-laws when all of a sudden we heard a loud crash. We went outside and my car had accelerated and crashed into their garage. There was no one in the car at the time of the acceleration. The dog was still in the house with us. The car was in park. …”