Garmin G3X Touch Pilot's Manual page 297

Arming LOC & GS Modes while GPS Mode is still active:
1) EXTERNAL NAVIGATOR: Tune and activate the desired localizer frequency.
2) EXTERNAL NAVIGATOR: Load the approach (LOC, ILS, LDA, SDF, etc) into
the flight plan.
3) G3X Touch: While GPS is still the selected navigation source on the
external navigator, press the APR Key (GMC 305) or touch APPR to arm
LOC and GS (Glideslope) Modes even with GPS Mode still active. The
external navigator will switch from GPS to VLOC automatically and the G3X
Touch will capture the localizer and then the glideslope.
If Navigation Mode is active and either of the following occur, the AFCS
reverts to Roll Hold Mode (wings rolled level):
• Different VOR tuned while in VOR Navigation Mode (VOR Navigation
Mode reverts to armed)
• Active navigation source manually switched•
deleted (only GPS-based modes)
• GPS reception is lost
If VOR Navigation Mode is active and the VOR signal is lost, the autopilot
reverts to Roll Hold Mode (wings rolled level) and reverts VOR Mode to armed
in the event the VOR signal is reestablished.
OBS MODE
Enabling/disabling OBS Mode (without external GPS navigator):
1) From the Active Flight Plan Page press the MENU Key while navigating a
flight plan or Direct-to.
2) Touch Set OBS and Hold.
3) Touch Sync Course or enter the desired course to/from the waypoint using
the keypad and touch Enter.
4) To cancel OBS Mode and return to automatic waypoint sequencing, press
the MENU Key.
5) Touch Release Hold.
190-01754-00 Rev. E Garmin G3X Touch Pilot's Guide
AFCS
Active flight plan is
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