One problem related to engine and engine cooling has been reported for the 2006 Toyota Sienna. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2006 Toyota Sienna based on all problems reported for the 2006 Sienna.
While I was parking my Toyota Sienna the engine revved and the van took off like a rocket! my foot was on the brake and only the brake the entire time. I finally stopped after running uncontrollably into a building!.