This morning my infotainment display went completely dead, no backlight on the buttons, nothing. However the audiobook I was listening to on USB continued to play and showed up in the left gauge display. I was able to adjust volume with the steering wheel control but not the dial on the center screen. I tried holding buttons in all sorts of combinations but nothing happened. I decided to do a Google search and found a Reddit thread where the guy said he had to remove and then reinstall the fuse for the audio system (engine compartment, bottom one on forward row)

So I did that and it came back. When it did come back it had a message about entertainment system anti-theft feature having been activated. So I'm not sure what it was about.