Subaru Impreza 2012 Instruction Manual page 100

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Smart zoom display
When the navigation screen is set to auto zoom, this function is turned
on.
Touch to display the control button.
Touch to enlarge the display, and touch
When expanding or reducing, the smart zoom function is switched off,
and is displayed. Touch to turn on the smart zoom function.
If no operations are made for about six seconds, the previous screen is
displayed.
<Smart Zoom On>
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You can touch a position on the map, and then check that position
during navigation. The map's current position tracking function stops
(the car marker (a blue arrow by default) is not fixed in position on the
to reduce the display.
screen), and the control buttons are displayed allowing you to change
the map display.
<Smart Zoom Off>
Map operations
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