Did you just park your car and pull the parking brake, but now it refuses to release? This frustrating scenario isn’t just inconvenient—it could potentially lead to more serious issues if ignored. A stuck parking brake is a common problem, and various underlying factors can cause it. From weather conditions to worn-out parts, understanding the reasons behind this issue can help you resolve it quickly and safely.
What Causes a Parking Brake to Stick?
The parking brake, or emergency brake, is designed to keep your car stationary when parked, especially on slopes or uneven terrain. When it gets stuck, it usually means something has gone wrong within the brake system. Here are the most common culprits:
1. Cold Weather Freezing the Brake Cables
If you live in a cold climate, freezing temperatures could be to blame for your stuck parking brake. The brake cables that connect the lever to the brakes can freeze due to moisture buildup. This typically happens when water gets inside the cable housing and freezes overnight. When the cable is frozen, it won’t release the brake even if you lower the lever inside the car.
In freezing weather, try parking in a garage or covering your car to prevent moisture from freezing inside the cables. If you find yourself with a stuck brake, gently warming the car in a heated space can sometimes loosen things up.
2. Rust or Corrosion in the Brake Components
Rust can develop on your car’s brake components, especially the cables and calipers, leading to a parking brake that doesn’t engage or release properly. Corrosion is a common issue for vehicles in areas with high humidity, road salt, or infrequent use. Over time, the rust can cause the brake cables or calipers to seize, making it impossible to disengage the parking brake.
Regular inspections and maintenance can prevent rust buildup. If corrosion is the cause of your stuck brake, you may need a professional to lubricate or replace the rusted components.
3. Worn Out or Stretched Brake Cables
Like most car parts, the cables that connect your parking brake to the brakes can wear out over time. As the cables stretch or fray, they can lose tension, causing them to either not engage or not release when needed. A stretched cable may also prevent the brake pads from releasing fully, leaving your brake stuck in place.
If you notice that your parking brake feels loose or doesn’t hold as securely as it used to, worn-out cables might be the issue. Replacing these cables will usually resolve the problem.
4. Brake Shoes or Pads Stuck to the Drum or Rotor
If your vehicle uses drum brakes, the parking brake may stick because the brake shoes have bonded to the drum. This is more likely to occur after the car has been parked for an extended period or if the brakes are wet and exposed to freezing temperatures. Similarly, on vehicles with disc brakes, the brake pads can sometimes adhere to the rotor due to excessive heat or rust, preventing the parking brake from releasing.
To avoid this, it’s important to periodically move your vehicle if it’s been parked for long periods and always ensure the brakes are dry before setting the parking brake.
5. Improper Use of the Parking Brake
Sometimes, the issue might be simpler than you think. Improper use of the parking brake can also cause it to become stuck. If the parking brake is pulled too tightly, or if it’s left engaged for too long, it can become difficult to release. Many people don’t realize that yanking the lever too hard can actually damage the internal components, leading to a stuck brake.
Be gentle when engaging and disengaging your parking brake. If you notice resistance or difficulty in releasing it, you may need to have it checked before it worsens.
How to Fix a Stuck Parking Brake
If you find yourself dealing with a stuck parking brake, you can try a few things before calling a professional. First, double-check that the brake lever or button is fully released. If the issue seems to be caused by cold weather, you can try warming the car or carefully pouring warm water over the frozen components (taking care to avoid the brakes themselves).
If these methods don’t work, or if you suspect rust, worn cables, or improper use is to blame, it’s best to have a professional assess and fix the issue to avoid causing further damage to your brake system.
If your parking brake is acting up, don’t wait for a bigger issue to arise. Bring your car to X-tra Mile Auto Care, where our expert technicians will inspect, repair, and get you safely back on the road in no time!