Hi all! Same issue here. Atlas SEL 4motion that is 2 months old, but from the day I drove the Atlas off the lot, I felt the driver side front wheel area made a knocking noise after hitting significant potholes, etc. Almost like a kickback rattle. Then, my wife tells me she hears a squeaking noise coming from the same driver side front when driving slow (0-25 MPH) on some bad streets in NJ and NYC. Sure enough, I hear it now too driving on some sandy/dirt roads on the Cape. I still think there is knock/rattle there in addition to the squeak. Best heard when radio is off. Also, park in a quiet area (garage is best), and push down on the front bumper and you will hear the squeak clearly even with the hood closed. Dealer said they didn't hear it on the street; however in the garage they said the 'left is significantly louder than the right' and they would order a new left strut. That was 2 weeks ago and haven't heard from them. My guess is they can't get the part due to demand.
I generally like the car other than this problem and the fact that the rain sensing wipers seem to never come on but I will post that problem separately.