Limited with sudden onset car vibration with severe shaking. I thought a wheel imbalance but it turns out the steering coupler defective. Car ownership 2 weeks. Waiting for parts and cannot drive.
That’s what I thought going by discussions. However road test confirmed Vibration. They replaced the rear differential coupler and propeller shaft. TSB 19-SS-003H. Parts # 49300-S8050 (shaft)
47800-4G500 (coupling assembly)
I hope this helps if your having a problem. Good luck. Our dealer gave us a brand new car to use for a trip while we got the work done.