Garmin G3X Pilot's Manual page 104

Flight Instruments
Switching between internal and external flight plan sources:
From the Active Flight Plan Page or the Direct-to Page, touch the INTERNAL
or EXTERNAL Softkey to switch between the internal and external flight
plan sources when an external GPS Navigator is configured.
F
ailure oF the
If the external GPS navigation source fails, the system reverts to the internal GPS
navigation source and 'REV' is shown in yellow in the upper left corner of the Data Bar
as well as the lower left quadrant of the HSI.
External
GPS
Failure.
Reverted
to Internal
GPS
84
e gpS n
Xternal
External GPS Navigation Failure
Garmin G3X Pilot's Guide
S
avigation ourCe
REV:
External
Navigation
Source failed.
Reverted
to internal
VFR GPS for
navigation.
190-01115-00 Rev. J