1. The car now uses the right thumb wheel on the steering wheel to "scroll" through songs. If you have the Tech Package, the song list will appear on the HUD. If you don't have the HUD the song list will appear on the LCD between the gauges. Either way, you rotate the wheel one stop north and push it in to "skip".
2. You are mistaken. It's a manual handbrake.
3. Heated steering wheel is a separate option from heated seats alone. Winter package needs to be on your build.