This link should open a pdf file page you can save to your computer.
Every one of us with power front shades should keep this as you WILL have to reprogram your shade if you run the battery down or simply remove a cable for any reason. Also, electrical glitches could cause your shade to lose it's programming.
The power shades used in Precept, and prolly most Jayco models having power shades, is made by MCD innovations. As far as I can see, all their programmable models use this same procedure to program the shade.
Use page 8 in this file to program your shade as needed. You will find the "learning key", as MCD calls it, is at the left end of your shade up near the roof. It is two wires hanging down and mine has a very small push button switch plugged into it for ease of use.
Now get out there and fix the shade!!