I purchased my brand new Denali Yukon 2022 a few weeks ago with 20 miles on it. It currently has 1000 miles on it and has been exhibiting the following issue since I drove it off the lot:
At speeds of 70mph+, there is a rattling sound coming from the engine. The rattle is directly correlated with pressing the throttle slightly. There is no noise without any throttle. The noise happens in the 1.5-2K RPM range.
Here is a video of the noise I recorded on the highway: