Garmin G3X Pilot's Manual page 211

Or:
1) With an approach loaded on the Active Flight Plan Page, press the FMS
Joystick to activate the cursor.
2) Move the FMS Joystick to highlight the approach, and press the ENT Key.
"Activate XXXXX Approach?" window is displayed.
3) With 'Yes' highlighted, press the ENT Key.
Loading/Activating an approach from the Direct-to Window or
Waypoint Page:
1) Press the Direct-to Key or select the Waypoint Page.
2) Press the MENU Key.
3) Turn or move the FMS Joystick to highlight 'Select Approach', and press
the ENT Key. If an approach is not already loaded or activated, the cursor
is displayed in the Approach Field. If an approach is already loaded or
activated, 'Activate' is highlighted.
4) With 'Activate' highlighted press the ENT Key, or select an approach,
highlight 'Load Approach' or 'Activate Approach', and press the ENT Key.
Removing an approach:
1) Press the FPL Key.
2) Turn the FMS Joystick to display the Active Flight Plan Page or Saved Flight
Plan Page.
3) Press the RMV APPR Softkey; or press the MENU Key, highlight 'Remove
Approach' by turning or moving the FMS Joystick, and press the ENT Key.
190-01115-00 Rev. K
Active Flight Plan Page Menu
Garmin G3X Pilot's Guide
Flight Planning
189