There are two programming buttons hanging from wires in the corner of the windshield. They are on the passenger side on my 2017 37F.
You’ll find instructions in how to use them on YouTube and at the MCD website.
My solar shade has stopped working and after going through the instructions all I can conclude is that my motor has stopped working. But you should try the programming first. That has worked for many users. You reprogram the start/stop locations for the shades with the engine off and again for the engine on.
This is what the buttons look like only they would be hanging down.
2017 Winnebago Adventurer 37F
2016 Lincoln MKX Toad