Garmin G3X Pilot's Manual page 312

Integrated Autopilot
NOTE: The External Autopilot Unit's "engage" button will activate the
Integrated Autopilot in its default modes. Refer to the appropriate vendor
documentation for more information.
Control Pressed
External Autopilot Unit
CWS Button (if equipped)
(press and hold)
AP HDG Softkey
AP NAV Softkey
AP ALT Softkey
AP VS Softkey
AP VNAV Softkey
AP APPR Softkey
The AP NAV and AP APPR Softkeys must have a valid VLOC signal or an active GPS
course to activate the integrated autopilot.
The AP VNAV Softkey must have an active flight plan and VNAV enabled to activate
the integrated autopilot.
DISENGAGING THE INTEGRATED AUTOPILOT
The Integrated Autopilot is manually disengaged by pushing the disconnect button
on the external autopilot unit, or by pressing the autopilot disconnect button on the
control stick or yoke. Manual disengagement is indicated by a five-second flashing
yellow 'AP' annunciation and an aural alert.
292
Lateral
Mode/Annunciation
Roll Hold ROL
Roll Hold ROL
Heading HDG
GPS
Navigation VOR
LOC
Roll Hold ROL
Roll Hold ROL
Roll Hold ROL
GPS
Approach
LOC
Engaging the Integrated Autopilot
Garmin G3X Pilot's Guide
Modes Selected
Vertical
Mode/Annunciation
Pitch Hold
Pitch Hold
Pitch Hold
Pitch Hold
Altitude Hold
Vertical Speed
Vertical Navigation VNAV
Glidepath
Glideslope
PIT
PIT
PIT
PIT
ALT
VS
GP
GS
190-01115-00 Rev. J