When I bought the car the MMCS would automatically know when it was day or night and changed the map colors accordingly, but a couple days back it stopped functioning correctly, it was just stuck on which ever it was set on i.e night if I left it on from the night before. Anyone have a fix for this?

Change the option in your settings menu. It has Auto/Day/Night.
On Auto, it goes by your head lights.
Headlights on its Night mode.
Highlights off (DRL's) it's on Day mode.