Hi I have a 2019 Sundancer 320...

[Bradeyedoc]

Hi I have a 2019 Sundancer 320 OB with trip merc 250s.  Recently Inhsve had multiple alarms saying “steering reduced - critical,  return to port immediately and see dealer”. Initially just center engine and went away when rebooted system.  Now ALL 3 engines and rebooting not working.  Pretty scary as I had just pulled it off of lift and lost all steering!!  Anyone seen this!  Waiting to have it towed to dealer

[Sea-N-Sea]

I have a 2010 SeaRay Sundancer 310 with twin I/O's. I got the same alarm as you, and like you, I lost all steering (in a crowded channel at about 35 mph). Mine was due to a power steering line leak. Without power steering, you have no steering, and unfortunately, the outdrives configured themselves in such a way that steering with just the throttles was not an option.