Community / What's That Noise?

A grinding or scraping sound on the first few brake applications of the day, that then goes away, is very often light surface rust that forms overnight on the rotors — completely normal, especially after rain or in humid weather, and it wears off within a stop or two. If the grinding persists throughout the drive, or gets worse rather than better, that's a different and more likely real issue — usually worn-through pads contacting the rotor metal-to-metal, which is worth getting checked promptly rather than waited out.

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