Hi everyone, newbie here. I've had a 2007 Grand Prix for about 20 months now and entering my second winter with it. I've got a weird problem where if the temperature is cold (<25 degrees F or so) when I hit the increase switch on the cruise control, it just shuts off. The set button still works no problem, and the increase button works perfectly during the warm parts of the year. Anyone know what this might be? My first thought would be a wiring issue but why only when it's cold? Thanks in advance.
