If the shades are MCD shades, it sounds like the programming for the shade bacame corrupted, it's happend to me a couple of times. The switches you mentioned are to put the shades in program mode, the lower of the 2 switches will be for the black shade. You should be able to download the programming procedure from the MCD website. Make sure you follow the directions exactly, or you will have to start the process over.
Dennis & Debbie Z (Retired) F415847
Pipe Creek, TX
2008 HR Endeavor 40PDQ / 2014 Grand Cherokee / 2015 RAM 1500 Toad