ECAS ? Issues on startup cycle

2016 Freightliner Cascadia Evolution. When turning key over for its cycle the red triangle pops up along with check ECAS. It Never happens while driving only on startup. I have turned off and recycled sometimes back to normal quickly other times I play with the load transfer cancelling it and lowering suspension, re raising it. After a few times sometimes a lot it will correct. Also, I lose my rpm/mph gauges although still drivable with a noticeable difference in the ride. Not much info online. Maybe sensor, or leveling valve? Help with any feedback is appreciated!