Garmin G3X Pilot’s Guide190-01115-00 Rev. J 163Flight PlanningSystemOverviewFlightInstruments EISCNSInterfaceGPSNavigationFlightPlanningHazardAvoidanceAdditionalFeaturesIntegratedAutopilot Annun/Alerts Appendix IndexSwitching between internal and external flight plan sources:From the Active Flight Plan Page or the Direct-to Page, touch the INTERNALor EXTERNAL Softkey to switch between the internal and external flightplan sources when an external GPS Navigator is configured.FAILURE OF THE EXTERNAL GPS NAVIGATION SOURCEIf the external GPS navigation source fails, the system reverts to the internal GPSnavigation source and ‘REV’ is shown in yellow in the upper left corner of the Data Baras well as the lower left quadrant of the HSI.External GPS Navigation FailureExternalGPS Failure.Reverted toInternal GPSREV: ExternalNavigation Sourcefailed. Reverted tointernal VFR GPSfor navigation.
