The noise brake indicator;The brake pads are scraped off when the brake pads are low, causing a loud noise and know that it is time to maintenance the brakes of car. Stock-Foto
Washington Department of Ecology: How to find low-copper brake pads
BOSCH 0 986 424 696 Brake pad set BP409 Low-Metallic, with acoustic wear warning, with anti-squeak plate ▷ AUTODOC price and review
The dealer said my brake pads were very low, but they didn't squeal or squeak. Should they have? - Quora