One problem related to cruise control has been reported for the 2012 Toyota Sienna. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2012 Toyota Sienna based on all problems reported for the 2012 Sienna.
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 control setting.
| Vehicle Speed Control problems | |
| Car Accelerates On Its Own problems | |
| Cruise Control problems |