Nav screen issue
 

This may be a dumb question, but my nav screen remains in day mode even at night with the headlights on, regardless of any light switch setting. The manual didn’t give me a clue. What have I missed?

Well, the manual says that the 'day' mode can be set on/off in the settings menu. In other words you can force it to be on - perhaps this is what you had done.

In the menu page, click on the top right DISPLAY button.

You might have had set Day mode always ON.

Thank you. That was the problem.