[House Divided]

For what my opinion is worth, I would suggest as Richard did a thorough understanding of the way the system is supposed to work. If I am repeating the obvious I apologize. I say all this because it seems like your system should function the same as mine. Since each coach is different, I can only relay how mine works. it may or may not be exactly the same.

A couple of comments stand out.

First: you mentioned that only the tag switch works while in travel mode. That is as it should be. On my coach the tag axle and therefore tag switch is not part of the manual leveling system in any way. It is used only while in travel mode for special low speed circumstances. Mine is a three position switch - up to increase air pressure on the tag - down to dump air from the tag. Center position is for normal driving. With the leveling system in travel mode and tag switch in center position the tag axle function is automatic. Also the four manual level switches should not function in travel mode - height control (ride height) is tranferred to the height control valves in travel mode.

Second: you mentioned that you have had to manually raise the coach before traveling and that when switched to travel mode the coach will level itself on slightly uneven surfaces. These scenarios obviously aren't normal. Switching out of level mode into travel mode should allow the height control valves to take over with no additional input required from the driver. Kind of a random question, but Is it possible the ride height is not correct? If the HCV's are out of adjustment its feasible the coach will sit too low causing you to have to raise it before traveling - or if one side HCV is off its unlikely but possible that the coach would "level" itself on uneven surfaces.