Having a lot of problems with the sunroof. Prior to it completely stopping, it would reverse itself when I’d close it. I went overseas and let it sit for 3 months, covered, when I came back, the sunroof and sunshade stopped working entirely. Fuses are in perfect condition. Since then, I’ve replaced the battery. I’ve read that earlier models of the CTS need a sunroof reset after switching batteries but I’m not sure if that’s a viable approach with the 09.