Thanks for the reference link. It sounds exactly like my problem, although I have a 2022. Dealer has diagnosed as drive shaft problem and has requested authorization from KIA to replace as warranty item. Awaiting response. In the mean time They did get me a HERTZ rental. Likey 2 weeks to get my brand new car back. Disappointing in a new car but they seem to be trying to address it. Will see how this plays out.