GPSMAP 182/182C Owner’s Manual 65M AIN MENU > M AP TAB• AutoZoom—On, Off: when on, the map automaticallyadjusts the map scale to a lower scale as you approach yourdestination point.• Color Mode—Water Mode, Land Mode: lightens the shadeof the water areas in Water Mode and land in Land Mode.This option is only available on the GPSMAP 182.Source Sub Tab• Basemap—On/Off: turns on or off the built-in basemap.• Data Card Maps—On/Off: turns on or off all BlueChart orMapSource data loaded in the unit or on the data card.• Built-in Maps—On/Off: turns on or off all built-inBlueChart maps.To display the Map Information Page:1. Highlight the Detail option box, and press ENTER.2. Use the ROCKER to scroll through the list of maps.3. To select or deselect a map, highlight the check box to theleft of the name of a map.4. Press ENTER to select/deselect the map. The map isselected and appears on the Map Page when a check markappears in the box adjacent to that map.5. To display detailed information and notes for each area,highlight a name and press ENTER. To view the notes forthat area, choose Show Notes. To scroll through the notes,highlight the notes, press ENTER, and use the ROCKER toscroll up, down, left, and right, or press MENU and choosea scroll option.