No radio, no map navigation screen is out?

It sounds like you may have a display control module that has gone out but we should check the fuse #65 10-amp in the under-hood fuse panel and fuse# 15 and #29 in the fuse panel in the lower left side of the dashboard.

Here is a guide to help and the fuse location int eh images below:

https://www.2carpros.com/articles/how-to-check-a-car-fuse

I have also included the wiring diagrams for the telematics screen so you can see how the system works. Check out the images (below). Please let us know what happens.

For anyone else who has this issue, Ken is likely correct in that it's the DCU (Display Control Unit); specifically a Micro SD Card inside the DCU.

Excellent addition to this thread!