Today, I was pumping a tire using compressor plugged into cigarette lighter. Observed compressor stopped.
I assumed it was a fuse, to take care of later.
Then, later that night, hooked up ISTA for the very first time.
Had to unplug/plug the cable a few times while troubleshooting. In the end, was able to connect ISTA (had to do with changing driver to be COM9).
Anyway, at some point, observed iDrive popped up message about lighting malfunction. Yep, headlights not working in auto mode (always stay on if ignition is active), courtesy lights not working. Just weird.