Noise in suspension going over undulations ?

[Tere]

I have a 2023 Aviator Black Label Touring in Flight Blue(hybrid) Factory ordered Aug ‘22 & took delivery in March. ‘23- beautiful car, but I’ve several issues with it. I’ve noticed for over a year now there is a noise when I drive on wide speed bumps or drive into a driveway, the car squeaks. Since I drive it daily & there are many speed ‘humps’ or wide undulations in our area it happens frequently. In fact I go over 3 sets just taking my kids to school 5 miles away! I’ve always taken my car to the dealership given the ‘free’ concierge service pickup& return. However after taking it 4 times since July ‘24 they still haven’t figured out what is causing the noise or how to fix it. Car has been at the dealership for 24 days (8/18/25) now with no resolution. And I call twice a week for an update.
Just wondering if anyone else on this forum has had a similar issue?
Or, any idea how to narrow the issue down so it can be fixed?
Thank you, T