I can only turn traction control off/on, I can't go into competitive driving mode or turn traction control/active handling off anymore.
It has always worked fine, the only thing that has been done since I noticed it not working is I had the battery changed. I had to reset my windows & all my radio presets so I'm wondering if it affected the driving mode button. I wouldn't think it would but I've been wrong before. Car is a 2005 C6 z51 m6 3lt