Table 1 shows three common vehicle speed control related problems of the 2012 Toyota Sienna. The number one most common problem is related to the vehicle speed control (seven problems). The second most common problem is related to the car accelerates on its own (two problems).
| Problem Category | Number of Problems |
|---|---|
| Vehicle Speed Control problems | |
| Car Accelerates On Its Own problems | |
| Cruise Control problems |
When pressing the brake the engine revs suddenly and to very high rpms and you have to press down on the brake and/or throw car into neutral/drive and then eventually the issue resolves. Happened yesterday when reversing very slowly out of driveway--was pressing brake (not accelerator) and suddenly Read details...
The contact owns a 2012 Toyota Sienna. The contact was driving 15 mph when the vehicle suddenly accelerated. The contact attempted to stop the vehicle but the brakes would not respond. The contact had to shut the vehicle off while it was moving to stop the vehicle from accelerating and avoiding a Read details...
While driving on an expressway with steep grades, with the cruise control set, the speed on steep downgrades would increase by up to 5 mph above the speed set on the cruise control. In other vehicles I have driven in recent years, I do not recall the speed variation exceeding 3 mph from the cruise Read details...