It's likely a "reset" that's needed - we encountered the same situation periodically with our 2017 Quantum. I've noticed that when I start the truck engine, I hear a small beeping sound from the rear coach area - discovered it was the auto leveling system that had turned on, and was alerting me that I needed to do something or the system would time out - and the error message would be displayed. So, now when I start the engine, I turn off the leveling system and we're good. And if not, just pressing the two buttons mentioned in other posts does the trick.
__________________
|