Recommended Rear Brake Pad Maintenance
Despite the considerable variation across popular makes and models, most vehicles have hydraulic brake systems that resist momentum with friction from clamping pads into rotors. Front and rear brake pads are designed for friction but wear down until nothing remains on the steel support plate. The general recommendation is to replace brake pads when nearing 4mm. Front and rear brake pads often wear at different rates due to load-bearing variations and specific engineering to advance steering/handling. Popular automakers like Ford, GM, Mopar®, Honda, Toyota, and Subaru recommend regular brake system inspection with pad measurement to inform as-needed brake pad replacement services. Drivers get rear brake pad replacement service when the front pads have sufficient thickness/life.