Tried restarting the game? I did some B-Spec races and turned off the displays then all of a sudden when going back to A-Spec my mini map has disappeared, even in arcade. I'm about to go to bed so I can't tell if restarting the game will fix it but update us when you try that.\
EDIT: Tried the pause menu as well? ...or the Options menu when not racing?
I've tried restarting it, that didn't help. It only happened after I tried out split screen with my brother. We had the maps during that, but when I quit and went to GT mode it was gone.
this also happened to me as well. I finished playing splitscreen, and going back to A-Spec GT Life, the mini-map went missing, even changing the settings while racing. Does anyone know of a fix?