E-Brake Not Working: Common Reasons and Ways to Fix This

As a car owner, it's important to have peace of mind when you're behind the wheel. That's why it's concerning when your emergency brake, or e-brake, stops working properly. The e-brake is an essential backup system that provides added stopping power in case of an emergency or if your regular brakes fail.

EPB problems highlights

• Level of urgency:medium
• DIY inspection:impossible
• DIY repair:impossible
• Can you drive?yes (unless it's locked up)
• Price for repairs:$200 - $350
• Symptoms:locked parking brake, EPB doesn't engage, EPB warning on the dash
• Ways to solve:take it to the dealer, try resetting the system by disconnecting the battery

Cable is disconnected or broken

The cable connects the e-brake lever or handles to the brake system, allowing the driver to engage the brakes manually. If the cable becomes disconnected or broken, the e-brake will not be able to transfer force from the lever or handle to the brake system, resulting in a loss of braking power. This can occur due to corrosion, wear and tear over time, or damage from an impact. To fix this issue, the cable needs to be inspected and reconnected or replaced as necessary.

Brake shoes or pads are worn

The brake shoes or pads are the components of the e-brake system that presses against the brake drum or rotor, generating the friction necessary to slow or stop the vehicle. Over time, the brake shoes or pads can wear down and become less effective, resulting in a loss of braking power. This can also happen if the e-brake is used excessively, as it is not designed for continuous use like the regular brakes. To fix this issue, the worn brake shoes or pads need to be replaced with new ones.

Brake drum or rotor is worn or damaged

The brake drum or rotor is the rotating component that the brake shoes or pads press against to generate friction and slow or stop the vehicle. If the brake drum or rotor becomes worn or damaged, it can affect the performance of the e-brake. Worn or damaged rotors can cause reduced braking power, increased brake noise, or in severe cases, complete failure of the e-brake. To fix this issue, the worn or damaged brake drum or rotor needs to be replaced.

Caliper is sticking

The caliper is the component of the brake system that houses the brake pads and exerts a force on the pads to press against the brake rotor. If the caliper sticks, it can prevent the brake pads from making contact with the rotor, resulting in reduced braking power or complete failure of the e-brake.

This can occur due to corrosion, debris, or the buildup of brake dust and other contaminants. To fix this issue, the caliper needs to be cleaned or replaced if necessary. It's important to have a professional mechanic diagnose and fix a sticking caliper, as improper repairs can result in further issues with the brake system.

The e-brake mechanism is not properly adjusted

Another common reason is the e-brake mechanism, the system of components that allow you to engage the emergency brake may need adjustments. Wear and tear, corrosion, or changes in the brake system can affect its performance and lead to decreased stopping power or a failure to engage altogether.

This can also cause decreased braking performance, excessive brake noise, or even a tendency for the e-brake to remain engaged even after release. Don't let this issue compromise your safety on the road. Have a professional mechanic inspect and properly adjust your e-brake mechanism. They'll make necessary adjustments to the cables, levers, and other components to get your e-brake back in top shape.

The e-brake lever or handle is broken or damaged

Your e-brake lever or handle is extremely important in assuring your safety on the road. When it is damaged or broken, you may be unable to engage the e-brake. This can be caused by a variety of factors such as regular wear and tear, corrosion exposure, or even an accident. Don't put yourself in danger because of a defective e-brake lever. Have it replaced by a skilled mechanic. They'll make sure your e-brake system is operational again so you can rely on it in an emergency.

The e-brake system is contaminated with dirt or debris

If your e-brake system is clogged with dirt or debris, you may find that it's not working as effectively as it should be. This contamination can compromise the performance of the brake calipers, brake drums, rotors, and the e-brake mechanism's components such as cables and levers.

To restore your e-brake's stopping power and ensure it engages properly, it's crucial to have it cleaned and inspected by a professional mechanic. They'll remove any dirt, debris, and contaminants, and replace any damaged parts if necessary, giving you peace of mind that your e-brake system is back to its optimal performance.

Wiring or electronic components have failed

Some vehicles have electronic components that control the e-brake or electrical wiring connecting different parts. Unfortunately, these components can fail over time due to things like corrosion, wear, and tear, or even damage from an impact.

If this happens, your emergency brake might not provide enough stopping power or might not engage at all. Don't panic though! A professional mechanic can diagnose the problem and make the necessary repairs or replacements to get your e-brake system back in working order.

The vacuum booster, if equipped, has failed

Your vehicle's brake system may be powered by a vacuum booster, which uses suction from your engine to give you an extra hand when stopping. But, if this booster goes haywire, your brake pedal may become difficult to press, unresponsive, or even your emergency brake may not work correctly.

This can happen due to everyday wear and tear, rust, or a drop in vacuum pressure from the engine. Don't wait for the worst, have a pro mechanic check your vacuum booster and make any necessary repairs or replacements. Drive with confidence knowing your brakes and emergency brake are in tip-top shape!

Inadequate maintenance of the e-brake system

Your emergency brake is an important safety feature, and regular maintenance is key to making sure it's always ready when you need it. Neglecting to check, clean, and fix it can lead to weakened braking power or even complete failure.

Don't risk driving with worn or damaged components, low brake fluid, or a dirty e-brake system. Trust a professional mechanic to give your e-brake a thorough inspection and all necessary repairs. From replacing worn parts to refilling brake fluid, they'll make sure your e-brake is functioning properly and ready to keep you safe on the road.

Final words

As a car owner, you realize how important it is to feel safe and confident when driving. That is why it is critical to keep your emergency brake in good shape. A working emergency brake may be the difference between a safe stop and a risky scenario on the road, while also serving as a reliable backup stopping system.

Don't put it off until it's too late. Take time now to examine your emergency brake and ensure it is in good working order. If you run into any difficulties, don't be afraid to seek expert help. The investment in your protection and the safety of others on the road is well worth it. Don't take any chances; examine your emergency brake as soon as possible!