The ZO in my 2016 MC is flakey. I’ve detected 3 states. One, where everything is fine and works normal. Two, the ZO doesn’t engage, and it doesn’t find any satellites. Sometimes all the numbers on the screen are zeros. Three, the ZO will not engage, and I cannot change the speed on ZO. The two arrow buttons are not present. When either 2 or 3 happen I can sometimes fix it by turning off the master switch and letting it sit for a few moments.