Good luck. There is no known fix and the TSB has been stopped by Hyundai. Our started off very quiet and got progressively louder over time until it was unbearable. Something is degrading over time - the seals, the body integrity? Don’t know, but something.We bought our in Dec 19 and never had the noise issue until last week. It is loud, even with the radio and kids making noise. We have an appt at the dealer tomorrow. I will follow up with my experience.
Boch Hyundai Norwood, MA.