The front-right wheel vibrates occasionally while driving

What is your question?

First, my car has AWD. That might be relevant. When I drive at 30 mph or higher, the front right wheel (or that part of the front-end) vibrates occasionally. It feels kind of like when you run over those grooves they put on the shoulder of highways, only not as bad. When it happens, it only goes for a few seconds then stops. It repeats often. It always happens when I have my foot on the gas and stops if I take my foot off it. Again, it always comes back soon after. The car never feels insecure. It just does this frequent vibrate, but otherwise feels fine. This also happens when there's nothing much on the road, like on new pavement.

What makes this problem better or worse?

Taking my foot off the gas

How long has your 2014 Chrysler 300 had this problem?

Almost a month -- since I bought it