It could be a few things. I need you to try something. See if the sound changes when you apply the brakes. Even though they are only 6 months old, it could be a sensor touching. Also, take notice if it happens only in one direction.
Next, when driving straight, do you hear anything? For example, do you ever notice a low humming or growling noise when driving straight?
One other thing, behind the brake rotor is a backing plate. Check to see if it is touching the rotor. It isn't hard to bend them. Also, they can rust and touch. I'm not sure if you are in an area where rust is an issue.
Do these things and let me know what you find. Also, let me know if you can lift one wheel off the ground at a time, and if it is loud enough for you to record and upload so I can hear it.
Saturday, October 17th, 2020 AT 8:19 PM