It would only shift into reverse if you used the plastic end of of a small screwdriver and pushed hard and rolled it around on the R button. A pencil eraser wouldn't push hard enough. From Prevost it is over $3000.
I got a rebuilt exchange from General Diesel & Electronics, 218 262 4553, for $220 shipped the same day that works perfectly and looks new. He even didn't bother with a $500 core charge, just asked that I send it back soon. Which I did.