2015 260 Sundancer OBD service soon!

[In Deep]

I have a 2015 260 Sundancer with 350MAG and 78 hours, fresh water boat. Yesterday got a display that came up and said OBD service soon! Boat has been serviced by Marinemax every year with winterizing.
Any ideas what this means?

 

[Quint4]

Could it be a predetermined service interval reminder based on engine hours?

 

[indeep]

Could it be a predetermined service interval reminder based on engine hours?

Dont think so, because the engine symbol shows in the display all the time now. Runs fine and everything works well.

 

[Odonnmic]

Following...

 

[dlvwill]

An engine fault has turned the service light on. You will need to hook up a scanner to ID the fault.