Low Speed Wheel Squeal

Hi All,

I just started experiencing wheel squeal the past month or so on 2021 TRD OFP with 67K miles and as far as I know little very limited off-roading. Bought it CPO from a dealership so I can’t say for certain. If my windows are rolled up you can’t hear it. But if they are down you can. From 0-15mph it’s the most noticeable, hi pitched and loud enough for people within 50ft to hear, from 15-30mph significantly less, 30-45 only noticeable if sound echoing off another vehicle or tunnel. Occurs even after an hour of driving so not likely related to cold temps. Brakes also just started very lightly chirping for a split second when initially depressed but then go silent.
What do you guys think it is?

 

Could be rock stuck in brakes. Pull wheels and inspect.