Brake repair and replacement frequency depends mostly upon the conditions they are put under. Those who drive in city conditions will need to be replaced more frequently than those who drive on the highway. There are signs that will suggest that your brakes need repair or replacement: ABS warning light appears, pulls to one side when braking, make a squealing sound when the brake pedal is applied, or even a pulsing. When you notice any of these signs you should schedule an appointment to have your brakes repaired and replaced.