Your Toyota Sequoia 2003 has a trac off light on and a VSC trac light on and an engine check light on how do i turn them off or reset them or who can reset them?

I think it has to do with a loose/defective radiator cap. Also, I think only the dealership can turn that light off ... unless someone out there knows how to reset it. My radiator cap had a bad gasket. The engine overheated and the cap blew. In two days (when I finally make it back to civilization) I will know more.

It is very unlikely to be a loose/defective radiator cap. VSC / TRAC issues are most likely to be related to a brake sensor on one or more of the wheels. On my 2003 Sequoia, I can cause this condition at will, simply by braking so hard that I trigger the anti-lock brakes. Because I have a bad wheel sensor on one of the wheels, that will cause the TRAC to trip off, and turns on the VSC Trac Light and the Check Engine light. I can disconnect the negative battery cable for a couple of minutes, and it will go away, never to return until the next time I brake extra hard and the anti-locks go on again. I know I could have the wheel sensor replaced, but I just never seem to get the time. Or money.