nüvi 2405/2505 Series Owner’s Manual 53• Limit Walking—controls the maximumwalking distance included in a pedestrianroute.• Public Transit—enables or disables transittypes.• Safe Mode—disables all functions thatrequire significant operator attention andcould become a distraction while driving.• GPS Simulator—stops the device fromreceiving a GPS signal, and saves batterypower.Route PreferencesSelect Settings > Navigation > CalculationMode.The route calculation is based on road speedsand vehicle acceleration data for a given route.• Faster Time—calculates routes that arefaster to drive but can be longer in distance.• Shorter Distance—calculates routes thatare shorter in distance but can take moretime to drive.• Less Fuel—calculates routes that could useless fuel than other routes.• Off Road—calculates a direct line from yourlocation to your destination.Display SettingsSelect Settings > Display.• Orientation—changes to landscape orportrait mode.• Color Mode—sets a light background (Day),a dark background (Night), or automaticallyswitches between the two based on thesunrise time and the sunset time for yourcurrent location (Auto).• Brightness—changes the brightness of thescreen. Decreasing the brightness can savebattery power.