2005 STS V6 Traction Active Message

I have a 2005 STS V6 that displays a "Traction Active" message and seems to stall. It used to do this from a cold start but now does it after a few mnutes shutdown. I have been to the dealer twice and they say there are no codes showing and they can't duplicate the problem.

I have the exact same issue, still unable to full figure it out but I am working on it. PM'd you.