nüvi 800 Series Owner’s ManualCustomizing the nüviGarmin Lock—turn on Garmin Lock™to lock your nüvi. Enter a 4-digit PIN,and set a security location. For moreinformation, see page 53.restore—restore the original securitysettings. Note that restoring the securitysettings will not clear your Garmin LockPIN or Security Location.Updating the TimeSettingsTouch Tools > Settings > Time.Time Format—select a 12-hour,24-hour, or UTC time format.Time Zone—select a continent, acountry, and a region. Touch ChangeContinent and Change Country toselect new search areas. Use the arrowsto scroll through your options.restore—restore the original timesettings.Adjusting the DisplaySettingsTouch Tools > Settings > Display.Backlight Timeout—select the lengthof time the backlight stays on when thenüvi is not connected to external power.adjust Brightness—adjust the backlightbrightness level. Reducing the backlightbrightness increases your battery life.Color Mode—select Day for alight background, night for a darkbackground, or auto to automaticallyswitch between the two.Screen Shot—turn on Screen Shotmode. Touch the to take a screenshot. The picture bitmap file is saved inthe screenshots folder on the nüvi drive.restore—restore the original displaysettings.