I think maybe this has been addressed before, but a long time ago. I opened my top this afternoon just about a foot and stopped it so I could put some silicone on the rubber seals. When I started it up again the roof wouldn't move and the warning message was "manually open tonneau cover". Since it was already open it took me a few minutes to figure out that you have to push (gently) on the top to get it to ease down into the storage compartment. Then the power mechanism worked as usual. BTW - it's a great way to get at and treat all those rubber seals.