The parking brake, also known as the emergency brake, is a dedicated braking system designed to hold a vehicle in place when the primary braking system may not be suitable. It complements the foot brake and is essential for preventing roll on inclines, securing a stationary vehicle, and providing a fail-safe in certain situations. Understanding the appropriate use of the parking brake enhances safety, helps protect the transmission, and reduces strain on the parking mechanism. This article explains when to apply the parking brake, proper techniques, and common mistakes to avoid.
When To Use The Parking Brake
The parking brake should be engaged in several common scenarios to prevent movement and reduce wear on other components. On inclines and in heavy traffic, it provides an extra margin of safety by securing the vehicle when stopped. When parking after a drive, especially on a hill or uneven surface, the parking brake helps ensure the vehicle does not roll. In addition, in certain emergency or brake-system maintenance situations, the parking brake can be used as a secondary method to slow or stop the vehicle if the foot brakes are compromised. Finally, in extreme weather, a parked vehicle with the parking brake engaged can keep the car from sliding due to slick conditions.
Proper Techniques For Applying And Releasing
Experience with the parking brake should begin with the vehicle at a complete stop. Apply the foot brake first to secure the car, then engage the parking brake smoothly. Avoid yanking the lever or rapidly pulling the handle, as abrupt action can stress components and cause the rear wheels to skid on some traction systems. When releasing, do so slowly while gently releasing the foot brake to prevent a sudden lurch or creep. For vehicles with electronic parking brakes, follow the manufacturer’s guidance, typically involving pressing and holding a switch or applying while in park at a stop.
After engaging the parking brake, ensure the gear selector is in park (for automatic transmissions) or in a low gear (for manual transmissions) to provide an additional safeguard against rolling. In incline situations, consider turning the wheels toward the curb when parking to create a secondary barrier if the parking brake fails. If the vehicle is equipped with hill-start assist or a brake hold function, understand how these features interact with the parking brake and the sequence for starting again. Regularly inspecting the parking brake linkage, cables, and drums or rotors helps maintain reliability and safety.
Parking Brakes And Vehicle Safety
- Preventing Rollaways: The parking brake supplements the transmission’s parking mechanism, reducing the risk of movement on an incline.
- Transmission Health: Relying solely on the transmission parking gear for every stop can cause wear; the parking brake shares load and reduces stress on the transmission, especially in vehicles with manual parking pawl systems.
- Emergency Preparedness: In a braking system failure scenario, the parking brake can provide a controlled, slower deceleration, though it should be used with caution to avoid locking rear wheels or losing steering control.
- Weather Considerations: In icy or wet conditions, engaging the parking brake can help secure the vehicle, but it also increases the risk of wheel lock if the brakes are not properly maintained or if traction is extremely low.
Common Mistakes To Avoid
Several frequent errors can undermine parking brake effectiveness. First, using the parking brake as a substitute for foot braking in normal driving can cause unnecessary wear and heat buildup. Second, releasing the parking brake while the car is still rolling can lead to sudden movement or loss of control. Third, relying solely on the parking brake for stopping the vehicle in an emergency is dangerous; the foot brakes are the primary stopping system and should be engaged immediately. Finally, neglecting to inspect the parking brake system can hide issues such as stretched cables, worn drums, or corroded components, increasing the risk of failure when needed.
Special Scenarios: Hill Starts, Parking On Slopes, Towing, Cold Weather
Hill starts require careful coordination of the foot brake, accelerator, and parking brake. Engage the parking brake to prevent rollback, then release it gradually as you apply throttle. For parking on slopes, turn the wheels toward the curb (or away from traffic when on a hill with adequate space) to provide an additional physical barrier in the event of parking brake failure. When towing a trailer or another vehicle, verify that the parking brake is capable of holding the combined weight; some trucks and SUVs include enhanced parking brake features for towing. In cold weather, rust and stiffness can affect braking performance; inspect cables for binding and ensure fresh lubrication where applicable, and replace worn components to preserve reliability.
Maintenance tips include periodic inspection of the parking brake cables for fraying or stretching, checking the mechanical linkage for wear, and testing the system in a safe area to confirm operation. Understanding the vehicle’s owner manual guidance is crucial, as some models have air or vacuum-operated parking brakes with different procedures. Regular professional inspections help detect issues early, maximizing reliability and safety in everyday driving scenarios.