Quick summary
- The parking brake pawl is a small metal piece that engages with the parking brake ratchet to hold the brake in place.
- Clamp a vice grip onto the parking brake cable and pull it towards the front of the vehicle to release the brake.
- A stuck parking brake can be a frustrating issue, but by understanding the common causes and following the troubleshooting steps outlined in this guide, you can safely release the brake and get your vehicle moving again.
A stuck parking brake can be a major inconvenience, leaving you stranded and unable to move your vehicle. If you’re experiencing this issue, it’s crucial to understand the underlying causes and how to release the brake safely. In this comprehensive guide, we’ll delve into the various reasons why your parking brake won’t release and provide step-by-step instructions on how to troubleshoot and fix the problem.
Frozen Brake Calipers
Frozen brake calipers occur when the caliper pistons become seized due to rust or corrosion. This can prevent the brake pads from fully retracting, keeping the brake engaged even when the parking brake lever is released.
Solution:
- Lubricate the caliper pistons: Use a penetrating oil or caliper grease to lubricate the pistons and break up any rust or corrosion.
- Replace the calipers: If lubrication fails, you may need to replace the entire calipers on the affected wheels.
Seized Parking Brake Cable
The parking brake cable is responsible for transmitting force from the parking brake lever to the rear brake calipers. If the cable becomes seized, it can prevent the calipers from releasing.
Solution:
- Lubricate the cable: Apply a lubricant to the parking brake cable and work it back and forth to loosen it up.
- Replace the cable: If lubrication does not resolve the issue, you may need to replace the parking brake cable.
Faulty Parking Brake Lever
The parking brake lever is the mechanism you use to engage and release the parking brake. A faulty lever can prevent the brake from releasing properly.
Solution:
- Check the lever assembly: Inspect the lever for any damage, such as broken springs or loose components.
- Replace the lever: If the lever is damaged, you may need to replace it with a new one.
Worn or Damaged Brake Pads
Worn or damaged brake pads can cause the parking brake to become stuck. When the pads are worn, they may not be able to fully retract, keeping the brake engaged.
Solution:
- Replace the brake pads: Install new brake pads on the affected wheels.
- Inspect the rotors: Check the brake rotors for any scoring or damage. If necessary, resurface or replace the rotors.
Failed Brake Actuator
The brake actuator is a component that helps to engage and release the parking brake. A failed actuator can prevent the brake from releasing properly.
Solution:
- Test the actuator: Use a multimeter to test the electrical continuity of the actuator.
- Replace the actuator: If the actuator has failed, you will need to replace it with a new one.
Broken Parking Brake Pawl
The parking brake pawl is a small metal piece that engages with the parking brake ratchet to hold the brake in place. A broken pawl can prevent the brake from releasing.
Solution:
- Inspect the pawl: Check the pawl for any damage or wear.
- Replace the pawl: If the pawl is broken, you will need to replace it with a new one.
How to Release a Stuck Parking Brake Safely
If you’re unable to release the parking brake using the lever, there are a few alternative methods you can try:
- Use a screwdriver: Insert a flathead screwdriver into the small slot near the base of the parking brake lever and pry it up.
- Use a hammer: Tap the base of the parking brake lever gently with a hammer to break it loose.
- Use a vice grip: Clamp a vice grip onto the parking brake cable and pull it towards the front of the vehicle to release the brake.
Caution: Always ensure the vehicle is in park and chocked before attempting to release the parking brake manually.
In a nutshell: Troubleshooting and Resolving Stuck Parking Brakes
A stuck parking brake can be a frustrating issue, but by understanding the common causes and following the troubleshooting steps outlined in this guide, you can safely release the brake and get your vehicle moving again. Remember, if you are unable to resolve the issue yourself, it’s recommended to seek professional assistance from a mechanic.
Common Questions and Answers
Q: Why won’t my parking brake release even after I’ve tried all the methods mentioned in the guide?
A: There could be a more complex underlying issue, such as a faulty brake booster or a problem with the vehicle’s electronic parking brake system. It’s best to consult a qualified mechanic for further diagnosis and repairs.
Q: Can I drive my car with a stuck parking brake?
A: No, it is not recommended to drive with a stuck parking brake. Doing so can cause damage to the brake components and potentially lead to safety issues.
Q: How often should I check my parking brake system?
A: It’s a good practice to check your parking brake system annually or as recommended in your vehicle’s maintenance schedule. This includes inspecting the cables, levers, and brake pads for wear or damage.