Table 1 shows two common vehicle speed control related problems of the 2016 Toyota Sienna.
| Problem Category | Number of Problems |
|---|---|
| Vehicle Speed Control problems | |
| Car Accelerates On Its Own problems |
In cold temperatures, this vehicle model (according to the dealer) does not shift into overdrive right away when driving from a cold-start. This causing a momentary acceleration when braking and presents an unexpected safety issue. I have found this issue posted on several car forums and it appears to affect more than just the 2016 model Sienna, but does not trigger a fault of any kind.
On June 6, 2019 at approximately 6 pm my vehicle experienced unintended acceleration. I was driving at 15 mph and it accelerated to 40-50 mph. Braking did not slow down the vehicle. I jumped the curb and hit three small trees. It came to a halt after undercarriage damage had been sustained. It was towed to cummings mobility where I purchased the vehicle. They could not determined what caused the unintended acceleration.