Hello, I assume that you were experienceling the same vibration issues as the rest of us. I was literally at my Lexus dealer 2 days ago, a master tech test drive mine and then we drove another OT on the lot. Myself and the tech both felt the exact same thing. They opened a ticket with Lexus, who then close the ticket and quote “this is a condition that is normal to like models and is considered characteristics of this model”. If possible, could you please forward an actual ticket or nature of the fix, so I can bring this forward to my dealer. Thank youWe heard back from the service manager today. There is anther OT with the same issues we’ve experienced. Forgive me for not knowing the proper terminology. There are 4 parts that work with the rotors and brakes/independent suspension that are faulty. They use the same 4 parts in the other 550’s, but the OT is the only model affected. Engineering has manufactured these 4 pieces in Japan, and were hoping to have them legally approved and shipped by today. They are saying now it will be next week. The fix will be replacing the rotors, brakes and the newly manufactured 4 parts.