Thanks for the video, @NoPeaceOfMind17. I watched it three times at full volume on my headphones and for the life of me could not hear the “whine”.
For the sake of information, here’s what QuietTuning is: a process that consists of acoustically enhanced windshield and side glass, along with numerous noise canceling acoustic treatments to reduce, block and absorb noise and vibration to create a quiet interior cabin.
So, QuietTuning isn’t magic. It’s not like it will be able to cancel out extremely loud or abnormal noises. It sounds like the issue you’re experiencing has nothing to do with QuietTuning or Noise Canceling… or any of that, but is rather an issue with a vehicle component.
I’m not sure what could be causing it… but has your dealer stated that this is normal behavior? Have you had a chance to drive another “base” Encore? If so, does it do the same thing?