I place my bet that you have something in the driver's door pocket. Someone recently posted that they lined the area with felt or carpet to prevent noise. I have a weapon there that gets noisy if not wrapped in something soft.I just bought a 2021 Sorento Hybrid with only 11,000 miles, and I've noticed a very pronounced creak/groan when I'm driving on anything other than smooth roads that I'm pretty sure is coming from the driver's side front door. Anyone else experienced similar? Any DIY fixes?