One problem related to ignition switch 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.
: the contact stated while parked and activating the ignition switch, an arching came off and burned the ear piece of a cell phone traumatizing the contact's ear. No warning signal was present during the numerous incidents. The spark could be heard and seen every time there was an occurrence. The vehicle was taken to the dealership who checked all electrical grounding but no defects were found. The manufacturer was notified. Updated 10/11/06.