Sound in Reverse

[Darryl]

27,000 miles

So it's still under warranty. So unless it's the pads themselves that are the ROOT CAUSE of the noise, it should be covered.

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[Famouslastwords00]

Does anyone know about or have heard the harmonic whine while in reverse that is supposed to be warning of excessive brake wear.
(Not the beep beep reverse sound
but a whine that sounds even when you are not braking)

I have a Ford Maverick 2023 XLT Hybrid at 39k miles and my truck has started making the noise when I reverse. It started when my truck was in 37k something miles and It doesn't happen all the time, so I can't bring it into Ford Dealership, to check what this noise is and see if it's still covered on my extended warranty.

Anyone have a definitive answer on this noise and what to recommend?