I haven't seen anything on this but I may have missed it.

Is there a way to adjust the brightness of the Nav Map when headlights due to rain but still somewhat light out? Tried changing the map scheme to a lighter color but the screen is still rather dim.

Ugh!

 

I use the day/night/off button to cycle from night back to day colors. Two taps. Alternatively, you can crank the panel brightness all the way up and the navigation will go back to day colors.