Garmin GPSMAP 172C - Manual (Page 11)

Always press and release a key to perform its primary func-
tion. Press, hold for more than one second, then release the
ENTER/MARK , NAV/MOB, and MENU keys to activate
their secondary function.
Arrow Keypad
Power Key
IN
OUT
NAV
MOB
PAGE
QUIT
MENU
ENTER
MARK
FIND
(ZOOM) OUT Key
The OUT key adjusts the map scale to display a larger area with less detail. (Zooms out)
(ZOOM) IN Key
The IN key adjusts the map scale to display a smaller area with more detail. (Zooms in)
PAGE Key
The PAGE key selects the main pages in sequence and returns display from a submenu page.
QUIT Key
The QUIT key returns the display to the previous page and, when entering data, it restores the previous value
(cancels data entry).
ARROW KEYPAD
The ARROW KEYPAD is used to select (Highlight) menu options and enter data. It also controls cursor move-
ment on the Map Page.
ENTER/MARK Key
The ENTER/MARK key selects a highlighted menu option. When entering data, it allows you to initiate entry, and
then to accept the selected value(s). It also marks the current location as a waypoint when pressed and held for
more than one second.
MENU Key
The MENU key displays a menu of available options for the current page. Press twice (or press and hold for more
than one second) to display the Main Menu.
NAV/ MOB Key
The NAV key displays the Go To and Follow navigation menu. MOB (Man OverBoard) actives the Man OverBoard
navigation feature when pressed and held for more than one second.
FIND Key
The FIND key activates the find function to search for nearby items and user waypoints.
POWER/ BACKLIGHT Key
The POWER/ BACKLIGHT key turns on/off the unit and adjusts the display illumination/contrast. Multiple
presses toggle the unit’s backlight between maximum, user-set, and minimum brightness levels.

Getting Started
Keypad Usage