Low coolant warning

[Ian MacLean]

The Garmin system on my 2018 r-29S is warning me that my coolant is low. But when I check the engine coolant it’s full. Does anyone have any idea what’s going on here? The engine is not overheating.

Thanks…

 

[American Flyer]

The Garmin system on my 2018 r-29S is warning me that my coolant is low. But when I check the engine coolant it’s full. Does anyone have any idea what’s going on here? The engine is not overheating.

Thanks…

Is it really full? I had the same scare when I first got my boat. The fluid looks full when opening the cap. But it was about 1/4 inch below the rim. After I topped this up, no more problems. The level sensor is ultra sensitive and the tank needs to be filled almost to overflowing when cold.
Also, make sure you use the specified coolant, it is very specific. Should be either the yellow(old) or orange(new) but check for yourself to be sure.