I have a 2010 Pontiac G6 GT Flex Fuel 4-door sedan. The temp gauge in the dash does not work, simultaneously, along with the air conditioner not blowing cold air. It just started this about a month ago. One day they didn't work; car was turned off and on several times that day. The next morning they work right away. They continued to work fine for about a week or so. All of the sudden again one day they didn't work. It seems to mostly do this when I start my car; however, one day while driving the air & temp gauge started working. Usually though, it happens to work or not work when I start the car. I just had a new thermostat put on within this past week thinking it would solve the problem, but it didn't because this morning both the temp gauge & air conditioner would not work. I would greatly appreciate any suggestions. Thanks!