Why does the brake pedal vibrates when braking

Brake pedal vibration when braking is typically caused by uneven or warped brake rotors, which result in inconsistent contact between the rotor and brake pads. This can occur due to excessive heat buildup from frequent hard braking, causing the rotor to deform. Another common cause is uneven wear or deposits on the rotor surface, often due to poor-quality brake pads or improper installation. Additionally, loose or worn suspension components, such as bushings or ball joints, can amplify vibrations. Proper maintenance, including timely rotor resurfacing or replacement and using high-quality brake components, can help prevent this issue.