I restarted my car after driving about 90 miles. Everything except the controls for cruise control have stopped working. Interestingly my steering wheel is still heating but the lighted button is off and I can not turn off the heating. The volume buttons fav buttons and menu controls to change the speedometer display are all inoperative. Could there be something as simple as a fuse? I will be calling the dealer for service on Monday. Right now the car is drive able and there are no error messages.