Have you been doing any work in or outside of your vehicle lately? Anything that may have caused a connection problem some where? What's going on under your passenger seat? If I'm not mistaken, this is where the TOD CPU is located. Also, how about crumbs and such down by the button itself? Anything wedged in between the buttons that perhaps is blocking the button from popping back out? What happens after you reach 25 mph? This is when winter mode should shut itself off.