What Are The Reasons For A GMC Parking Brake Failure?

Parking brakes play an important role in keeping your vehicle secure when parked. However, issues can arise, leading to unexpected reasons for a GMC parking brake failure. Whether you're experiencing reduced braking power or a complete failure, recognizing these problems allows for faster diagnosis and repair, ensuring the safety and performance of your vehicle on the road.

Check for Worn or Stretched Parking Brake Cables

The parking brake cables connect your brake handle or pedal to the brake mechanism, allowing you to apply the brake. Over time, these cables can wear down or become stretched, causing a reduced braking effect. When the cable is worn or stretched, it loses tension, making it difficult to fully engage the parking brake. This issue is especially common in older vehicles or those that have seen heavy use. Regular inspection and timely replacement of the cable can prevent more serious brake failures down the road.

Inspect Brake Pads and Shoes for Excessive Wear

Brake pads and shoes are essential components of the parking brake system. When they become excessively worn, they lose their ability to properly grip the wheels and hold the vehicle in place. Worn brake pads or shoes can cause the parking brake to feel loose or fail to engage entirely. This wear can be exacerbated by frequent use or poor maintenance practices. Regularly inspecting these components ensures they are in good condition, which in turn keeps the parking brake working effectively to secure the vehicle.

Look for Corrosion on Parking Brake Components

Corrosion is another common culprit behind parking brake failure. The metal parts of the parking brake system, such as cables, levers, and springs, are exposed to moisture and debris, which can cause rust to develop over time. When corrosion sets in, it can hinder the movement of these components, making it difficult for the parking brake to engage or release properly. In severe cases, rusted parts may break, leading to a complete system failure. Keeping the system clean and free of moisture can help prevent corrosion from forming.

Ensure Proper Adjustment of the Parking Brake System

Proper adjustment of the parking brake is critical to its operation. If the parking brake system is not correctly adjusted, it may either apply too little pressure, resulting in ineffective braking, or too much, causing premature wear of the brake components. Over time, the parking brake can fall out of alignment due to normal use, reducing its effectiveness. Ensuring the system is correctly adjusted allows for optimal braking performance and can prevent unnecessary strain on other parts of the brake system.

Monitor Hydraulic System for Leaks or Failures

The hydraulic system in some vehicles, including certain GMC models, plays a role in the functioning of the parking brake. If there is a leak or failure within the hydraulic system, it can impact the parking brake's performance. A drop in hydraulic fluid levels or pressure can prevent the brake from engaging or holding properly. Regularly monitoring the hydraulic system for leaks or other issues ensures the parking brake continues to operate as intended. Prompt repairs are essential to avoid more significant brake system failures.

GMC Vehicle Maintenance And Deals At GMC Danvers Dealership

Keeping your brakes, engine, and other components in perfect working order helps avoid unexpected issues and extends your vehicle's lifespan. We provide tailored GMC vehicle maintenance services that meet the unique needs of each vehicle. Visit GMC Danvers dealership for a vast selection of new and used GMC vehicles, as well as flexible financing and leasing deals.