Check engine light thoughts
Disk brakes work by squeezing two pads together on both sides of a rotating metal disk. Each wheel of your car is equipped with two of these brake pads that close together when you press on the brake pedal. Naturally, these pads wear down over time. That metal scraping sound that you one day start hearing whenever you press on the brakes is your car telling you that brake repair is needed. Ignoring that sound will not stop the pads from eventually wearing completely away.