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Acceleration Limiter Setting on a GHP Autopilot

The acceleration limiter setting is a safety feature used by the Course Computer Unit (CCU). If the CCU senses a quick or sudden turn, it will signal to stop initiating the turn. This setting limits the aggressiveness of autopilot-controlled turns. This settings is adjusted within the Dealer Mode setup menu.


Dealer Mode

From the GHC (Garmin Helm Control) press, Menu > Setup > System > System Information - on this page press and hold the center soft key until Dealer Mode appears. Once dealer mode appears press the back button twice. 


Acceleration Limiter from a GHC Display


After Dealer Mode is set:

Select Dealer Autopilot Setup > AutopilotTuning >  Acceleration Limiter - select an option

  1. The default settings are 66%

    • Increasing this setting will limit the turn rate of the autopilot

    • Decreasing this setting will allow the autopilot to make turns more sharply


Acceleration Limiter from a Compatible Garmin Chartplotter


From the current GPSMAP series Options > Settings > My Vessel > Autopilot Installation Setup - OK to the warning > Select Autopilot tuning > Acceleration Limiter - select an option

  1. The default setting is 66%

    • Increasing this setting will limit the turn rate of the autopilot

    • Decreasing this setting will allow the autopilot to make turns more sharply


WARNING: Adjust the acceleration limiter with care. Any adjustment lower than the default setting of 66% can result in the autopilot making very aggressive turns.