<human>:  How do I know if my car brakes need to be serviced?
<bot>: To know if your car brakes need to be serviced, you should check for any unusual noises or vibrations coming from the brakes when you apply them, any difficulty stopping or difficulty engaging the brakes, or any visible signs of wear or damage on the brake pads, rotors, or calipers. Additionally, you may want to consult your owner's manual for guidance about recommended brake service intervals.