I have a LX885 and randomly the petals are locked and I have to undo the seatbelt and reconnect then it works. this morning it won't work no matter what I do.
mine has the same rattle you are describing. while driving it, the rattle comes and goes. I put my hand on the cage in different areas and if I push the case just in the right spot the loud rattle goes away or diminishes. I haven't looked into it yet to be sure but I think its just sheetmetal...
I have the same problem with my 885 sometimes the right side doesn't go into high and I have to keep trying it until it goes.
I have the same problem with my LX885 sometimes it works and most of the time it don't.