Reviving an old thread here. But I had a the self-lvel suspension inactive appear today.

Happened in an odd fashion though.

Pulled the key on the ignition to refuel, but the headlight stayed on
When I restarted the car, after a minute or so the entire dash cluster goes out and then comes back up. Self level suspension message appears.
But I'm unable to see anything when i select the BC button from the radio console. The steer stalk still works.

I suspect one of the control units is fried. But it's odd that the self level suspension error is appearing but I'm still able to lower and raise the suspension since I have the adjustable supension setup on my 4.4