My Toyota Sienna 2007 model has check engine light on, tracoff light on, and VSC light on just because my gas cap is loose. Watch the video to see why.
I believe this is the same for all Sienna models from 2004 to 2010. It might also be the same for other models such as Highlander, Rav4, Sequoia, Camry, Corolla... that were made the same years as the Sienna.