Strategies for Avoiding Parking Brake Seizure

The parking brake, a crucial safety component in your vehicle, is designed to keep your car stationary when parked. Here's a guide to help you understand its functioning, common issues, and maintenance tips.

The Importance of the Parking Brake

The parking brake, also known as the emergency brake or handbrake, is an essential safety feature in your vehicle. It helps to prevent your car from rolling when parked on a slope or incline.

How a Parking Brake Works

Friction is the key to a functioning parking brake. Brake shoes or pads press against rotors or drums to generate friction that resists movement. The most common type of parking brake system is cable-operated, relying on cables connected to either the rear brake calipers or dedicated brake shoes within the rear brake drums.

Common Issues with the Parking Brake

Several factors can contribute to a parking brake locking up, including corrosion and rust, frozen cables, sticking calipers, worn or damaged components, improper adjustment, lack of use, and improper parking technique. Cold weather intensifies the likelihood of a parking brake locking up due to moisture infiltration and metal components contracting.

Preventative Measures

Regular inspections, lubrication, and timely repairs are preventative measures to keep the parking brake functioning smoothly. Applying penetrating lubricant directly to the cable ends and linkages can help if the cables appear corroded or binding. Regular use of the parking brake helps to keep the system lubricated and functioning smoothly.

Troubleshooting a Locked Parking Brake

If you find your parking brake locked, park the vehicle on a level surface, chock the wheels, and wear safety glasses and gloves. Gently rocking the vehicle back and forth may help dislodge a stuck parking brake. Loosening the parking brake cable slightly can resolve issues caused by a cable that is too tight. In some cases, gently tapping the calipers with a rubber mallet may help dislodge any corrosion or debris preventing pistons from retracting.

Seeking Professional Assistance

Seek professional assistance from a qualified mechanic when uncomfortable performing maintenance or repairs on the parking brake system. Sticking calipers can not only cause parking brake problems but also affect a vehicle's overall braking performance and should be addressed promptly.

Modern Parking Brake Systems

Electronic parking brakes (EPB) are a modern alternative, replacing the manual lever or pedal with an electronic switch that activates an electric motor to apply the brakes.

Safety First

Prioritise safety when troubleshooting a locked parking brake. In some cases, if unable to release the parking brake using troubleshooting steps, seek professional assistance from a qualified mechanic.

In areas with harsh winters, taking extra precautions such as applying a water-repellent coating to the cables and linkages can help prevent moisture from penetrating the parking brake system.

Maintaining your parking brake is essential for your vehicle's safety and longevity. Regular inspections, lubrication, and timely repairs are key to keeping the parking brake functioning smoothly for years to come.