Common problems that require repairs include a stuck parking brake, too much slack in the parking brake cable and broken cables; adequate lubrication and tightening or replacing the appropriate cables fix many of these. The first step is to identify what is causing the problem.
If the parking breaks sticks, lubricate the actuator levers or sliding mechanisms located on the vehicle's rear brake system. The brake assembly should be lubricated according to the manufacturer's recommendations using the recommended lubricant. Typically, the sliding mechanisms and actuator levers are located in the brake system behind the vehicle's front or rear tires.
The parking brake cable can stretch, which causes the parking brake to fail to engage when pressure is applied. If the parking brake does not engage easily, tighten the cable to the tension recommended by the manufacturer. Do not over-or-under tighten the cable, as this may cause the brake to malfunction.
To replace a broken parking brake cable, follow the cable to its point of origin on either side. Remove and replace the cable, and tighten the cable according to the manufacturer's specifications. Vehicles that feature an electric parking brake may require service by a technician, as the car's brake assembly must be set to service mode before making repairs.