My wife just had the check engine, VSC, and Traction Off lights come on. I have checked this forum and then tightened the gas cap and topped off the brake fluid. We had a similar situation last summer while we were on vacation. The condition lasted a couple of days then and then stopped by itself, so I never took it to Toyota. I guess now I'll have to take it in while it's still under warranty. Any ideas about these lights/sensors?