navigation or audio

I have a 2016 Genesis G80, all of a sudden the camera/gps, ac, shift gears, car sputtering, and radio stopped working. I've had four diagnostics done including by Hyundai. There's no error codes and I was told by each mechanic that it as if I don't have a computer in my car. The car starts and...

I have a 2009 Genesis with tech package with 25,000 miles. The navigation/xm etc systems have always worked perfectly until yesterday. It will now let me get on the navigation screen but will not let me do any input. Same on xm, it will play music but can only scan stations as opposed to using...