AUTOMATIC FULL SCREEN DISPLAY

An on-board vehicle navigation system (NAV system) may provide a variety of information and may be integrated with a variety of on-board vehicle systems or features. The NAV system may have the display set to show information about a single system in a full screen mode or have the display divided to show information about multiple systems simultaneously (mixed display mode). The NAV system may allow the user to select an automatic switching from a mixed display mode to a full display mode upon the occurrence of predetermined system conditions. The full display mode may be temporary and automatically return back to the previous display mode or may require a user acknowledgement prior to returning back to the previous display mode. The switch to the full display mode allows more information to be communicated to the user.