In a 2022 Ram 1500 Bighorn, the display screen blanked out when I was starting up. Yes, I immediately checked to see that it was turned on, the dimmer switch checked, and turned off and restarted the vehicle. The header and footer displays worked. The backup camera worked. Next step was to remove the fuze for the radio (Interior panel # F44). The fuze was fine, reinstalled, and everything worked. One point - Ram does not put a fuze box diagram in the Owner's Manual. I found one online. Hope that helps someone. The blanked out screen seems to be a recurring event in the forums.