Apparently, this has been happening since 2020. I have a 20 Platinum and started to complain after 2k miles on the car. Dealer had it for 4 weeks. Said they put ears on the chassis and could not find where the noise was originating from. Started the process of a buy back but was not approved. I test drove a 2021 Platinum, same noise. This noise is only on the AWD models and obviously coming from the sub chassis. Anyone had this issue fixed ??