Went to the beach named Old Orchard Beach in Maine and had the air on and all the display worked fine. The next day I remote started the car to take my fiance to work and the air is now stuck on freezing cold and none of the buttons work and the dual thermostat control for both the passenger and the driver is not lighting up and showing the temp to turn it hot or cold? Also, none of the other button works for the A.C. Like I can not turn it off and on etc. I disconnected the battery for fifteen minutes and still no luck, As far as upgrades to the car I had the factory radio replaced with a touch screen Cd/Dvd player and a remote start put in. It seems to me like a fuse but I checked every fuse that went to ac unit and display fuses all checked out to be good. How could the whole cluster not work but the air does? Seems like electrical problem, or failure on the panel itself, I bought this car from the rip off artists at the dealership West Herr in N.Y. it only has 30,000 miles on it but have had problems with since I got it, The approved me for a 19% interest loan which I got a five year loan which is an extra 10k in interest alone, so not only did I get screwed by that I have a supposed to be luxury car that is a pile of junk. I am never getting another Cadillac again period, Junk. Please email with any help or tips bfava2012@gmail.com thanks