[whatsnewell]

They are air valves which I believe are activated electrically. There should be a set somewhere near the front of the coach for the front wheels. I'm surprised there are only 5....I was expecting 6. I've got 12 total....6 for the front, located near the front of the coach in one of the basement storage areas just behind the left front steerer wheel, and 6 in the passenger side engine compartment for the rear wheels.

Here is a picture of my rear cluster.