If you have independent front suspension this could be a "weight jacking" problem. Set the front ride heights equally, then raise the opposite rear to increase weight on the light front side.
That works on cars with springs - the air bags probably complicate things by attempting to re-adjust.
What is important for consistent handling, especially braking, is to get the front weights equal. Depending on the effective spring rate of the bags, the ride height difference may be inconsequential. If you can't get it equal working from the rear, try adjusting front ride height until the weights are equal and if there's no noticeable tilt, you may be home free.