I just returned from a 4K trip through 7 states and my cruise control will go batty and make you pull over and re-boot the car. Basically I am cruising down the interstate with cruise control on. When I come into a town I will either pull the cruise lever forward or step on the breaks to disengage it. The traffic comes to a stop or slows to a crawl for a short period of time. Once the traffic starts to move again and we are back to highway speeds I can no longer use the cruise control because it is intermittently flashing on the dash as a mal-function. The only time it doesn't do this is when I am slowing down if I turn the power off to the cruise control system. What a pain ! Anyone have any ideas ? I stopped in the middle of my trip at two different dealers and there were no codes stored. One dealer charged me a diagnostic the second didn't after I showed him my receipt from the day prior from the other dealer but then he wanted to sell me a brand NEW MFD.