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36 GVN 52 Owner’s Manual
CHANGING THE SETTINGS
Turning Safe Mode Off and On
Press Menu three times. Then select General > Safe
Mode. When Safe Mode is turned on and the vehicle
is moving, Safe Mode disables all navigation system
functions that require significant operator attention and
could become a distraction while driving.
Changing the Coordinates Settings
Press Menu three times. Then select General >
Coordinates.
Position Format—change the appearance of your
coordinates. Your current position is viewed on the GPS
in the form of coordinates. Because different maps and
charts use different position formats, you can choose the
correct coordinate system for the type of map you are
using.
Map Datum—select the map datum to be used by your
GVN 52. If you are navigating and comparing the GPS
coordinates to a map, chart, or other reference, set the
map datum in your GVN 52 to the same datum as the
map to ensure the most accurate navigation.
Setting Audio Mute Polarity
Press Menu three times. Then select General > Audio
Mute Polarity. This is used for muting your radio when
your GVN 52 plays navigation prompts. Select Low or
High, depending on your radio configuration. See your
radio’s instruction manual for more information.
NOTE: This setting is used only on radios that can
switch to Aux audio based on an external signal.