GPSMAP 176/176C Owner’s Manual 69M AIN MENU > SETUP TABTo review/change data card information:1. From the Map setup page, press MENU, highlight Data CardInformation, and press ENTER.2. Use the ROCKER to scroll through the list of map coverageareas available. Only those with a check mark in the box tothe left of the name are displayed on the Map page.3. To select/deselect a map for display, use the ROCKER tohighlight the box next to the desired map, and press ENTERto check/uncheck the box.ORPress MENU, select one of the options (Show All, ShowNone, or Show ), and pressENTER.4. To view details about a map, highlight the map name andpress ENTER. Highlight Next or Map List to return to themap list.5. Press QUIT when finished to return to the Map setup page.Setup TabThe Setup tab contains general unit options for the basic unitfeatures. These setup options include: backlight, language, time zone,measurement units, and communication settings.System TabThe System tab controls system settings for the system mode, WAAS,backlight timeout, beeper, speed filter, languages, and current powerstatus (external power or battery range).System Tab