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Accessing Dealer Mode on a Garmin Autopilot
After the initial set up of an autopilot system, the Dealer Autopilot Setup menus will no longer display. If fine-tune heading adjustments, the need to rerun the sea trial, or other adjustments to settings are required, enter the GHC into Dealer Mode to access menu settings.
From the Heading screen, press Menu > Set up > System > System Information
Press and hold the center soft key button for 5 seconds until Dealer Mode appears
Press the back button twice
If the option for Dealer Autopilot Configuration (GHC 10) or Dealer Autopilot Setup (GHC 20) is available on the Setup screen, then the mode is enabled, and can be selected.