Yes I have the same thing going on with my 2024 sierra Denali I leased this truck in March and after 500 miles I noticed a vibration coming from the rear wheels and it felt like maybe a wheel weight came off so the dealer rebalanced all 4 wheels then rotated the wheels and this did nothing and then they showed me a GMC buliton that said some 10 speed transmission models may have a shutter thing going but GM is aware of this but you can try putting your shifter in L9 this will eliminate the AMF from working so you can see if that is your problem and this was not my problem at all I still have a shutter problem any where from 35 MPH up and I’m still complaining about it and now I have 3600 on it I will keep posting as time goes on 4/23/24