I'm having trouble getting the Nav screen to switch over to night mode. I went into the settings menu and screen display options and selected night mode from the button that says something like daytime/nightime screen. But this does not seem to work. My headlight swith is set to auto.

 

Any suggestions would be much appreciated.

Hmm.. Does your light have an "on" position rather than auto?

 

You may have to find something else to tap into.