An issue involving software on GHP Reactor autopilots may cause the unit memory to become corrupted, which may adversely affect the autopilot's performance, up to and including making the unit inoperative. Although not reported to date in any installed systems, in rare circumstances, the autopilot may behave unexpectedly, possibly performing abrupt maneuvers. A mandatory software update for the GHP Reactor Autopilot series, which includes the 12 below listed models, is required to correct the memory corruption issue and potential performance issues, and prevent the unit from becoming inoperative. For more information and instructions on completing the software update, please visit https://www.garmin.com/en-US/legal/ghp-reactor-service-alert

Affected Products

GHP Reactor Autopilot units (SKUs listed):

Note: The GHP Reactor model is shown on the NMEA 2000® devices settings menu on a connected GHC™ or GPSMAP® chartplotter.