The passion for check engine light
A brake light that goes on when the parking brake is disengaged indicates that your brake fluid level is too low. A brake fluid leak manifests itself by sight (a light amber color) and a smell that is distinctive. Rotor surface issues cause vibrations of the brake pedal or wheel. If in need of repair, your brakes may also squeal until you come to a full stop or when you release the brake pedal. When that happens, it means that the brake wear indicators may be scraping against the rotors.