@eJeff did you ever get this resolved? Mine is doing the same thing.My tires show no sign at all. Wear looks normal. No obvious alignment issues either. My car had 12 miles on it when it first happened, so unless it was shipped from the factory with wheels out of balance, that's not it. My conclusion has been that there is some sort of resonance happening at the right speed and turn rate. Likely something in the air suspension control or similar.