Rev Up Your Automotive Smarts

Caution: The Surprising Effect of Parking Brake Use on Regular Brakes

Main points

  • In the event of a failure in the hydraulic or electric braking system, the parking brake can provide an alternative means of slowing down or stopping the vehicle.
  • Applying the parking brake frequently, especially while the vehicle is in motion, can cause uneven wear on the brake pads.
  • Yes, the parking brake can be used to hold the car in place on an incline, but it should be used in conjunction with the regular brakes.

The parking brake, also known as the emergency brake, is a crucial component of any vehicle’s braking system. It serves the primary purpose of keeping the car stationary when parked, but does it have any impact on the regular braking system? This blog post delves into the intricate relationship between the parking brake and regular brakes, exploring their functions, interactions, and potential effects on each other.

Understanding the Parking Brake

The parking brake operates independently of the hydraulic or electric braking system used during regular driving. It typically consists of a hand lever or foot pedal that engages a mechanical linkage or cable. When activated, the parking brake locks the rear wheels, preventing the vehicle from rolling.

Functions of the Parking Brake

Beyond its primary function of immobilizing the car, the parking brake serves several other purposes:

  • Emergency braking: In the event of a failure in the hydraulic or electric braking system, the parking brake can provide an alternative means of slowing down or stopping the vehicle.
  • Hill holding: The parking brake can be used to hold the car in place on an incline, preventing it from rolling backward.
  • Trailer braking: In vehicles equipped with trailers, the parking brake can be applied to the trailer wheels to provide additional braking force.

How the Parking Brake Interacts with Regular Brakes

While the parking brake operates independently, it can have an indirect impact on the regular braking system:

  • Brake pad wear: Applying the parking brake frequently, especially while the vehicle is in motion, can cause uneven wear on the brake pads.
  • Brake fluid contamination: If the parking brake cable or linkage becomes damaged, brake fluid may leak into the system, potentially contaminating it.
  • Brake performance: In some vehicles, the parking brake may share components with the regular braking system, such as the brake master cylinder. If the parking brake is not properly adjusted or maintained, it can affect the overall brake performance.

Does the Parking Brake Affect Regular Brakes?

In general, the parking brake does not directly affect the regular brakes when used correctly. However, improper use or maintenance of the parking brake can lead to potential issues that may impact the regular braking system.

Proper Use of the Parking Brake

To avoid any adverse effects on the regular brakes, it is essential to use the parking brake properly:

  • Engage the parking brake after coming to a complete stop: Applying the parking brake while the vehicle is in motion can damage the brake pads.
  • Do not rely solely on the parking brake: The parking brake is not designed to replace the regular brakes. Use it in conjunction with the regular braking system for optimal safety.
  • Release the parking brake before driving: Failure to release the parking brake can lead to brake drag and premature wear on the brake components.

In a nutshell: Understanding the Interdependence

The parking brake and regular brakes are two distinct systems that play vital roles in vehicle safety. While the parking brake does not directly affect the regular brakes under normal use, improper use or maintenance can lead to potential issues that may impact the overall braking performance. By understanding the functions, interactions, and proper use of these systems, drivers can ensure optimal vehicle safety and longevity.

What You Need to Know

1. Can the parking brake damage the regular brakes?

Yes, if the parking brake is applied improperly or not maintained properly.

2. What are the signs of a damaged parking brake cable?

Squealing or grinding noises when applying the parking brake, difficulty engaging or releasing the parking brake, or brake drag.

3. How often should I inspect the parking brake system?

Every 12,000 to 15,000 miles or as recommended in your vehicle’s owner’s manual.

4. Is it okay to use the parking brake on a hill?

Yes, the parking brake can be used to hold the car in place on an incline, but it should be used in conjunction with the regular brakes.

5. Can I drive with the parking brake on?

No, driving with the parking brake on can damage the brake components and lead to poor vehicle handling.

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Cars have been my passion from a young age as I enjoyed learning how engines work, spending hours dreaming about the supercars I hoped to own, and I now have my dream job as a product designer for a luxury automaker. In my spare time I love going to car...