The parking brake is a crucial safety feature that should be used in specific situations to prevent vehicle movement and protect people and property. This article explains when and how to engage the parking brake, why it matters, and how to maintain it for reliable performance.
Understanding The Parking Brake
The parking brake, also known as the emergency brake or handbrake, primarily uses a separate mechanical linkage or electronic system to hold the vehicle in place. Unlike the foot brake, it does not affect the wheels during normal driving and is designed to secure the vehicle when stationary. In most cars, the parking brake locks the rear brakes, but some modern vehicles apply the brake electronically to all four wheels. Proper use reduces the risk of rolling after parking and adds a redundancy layer if the regular braking system fails.
When You Should Engage It
The primary rule is to engage the parking brake whenever the vehicle is parked and left unattended. This includes creating a fixed point for gravity to act against, especially on inclines. On level ground, using the parking brake is still recommended in certain conditions to minimize stress on the transmission and ensure the car remains stationary if a wheel or wheel lock develops. When driving on steep slopes, slopes with potential wind, or in environments with soft surfaces that could allow motion, the parking brake acts as a critical backup to the transmission’s parking mechanism and wheel chocks.
- On hills and inclines: Engage the parking brake before shifting to Park (automatic) or after coming to a complete stop with the transmission in gear (manual) to reduce strain on the transmission and prevent rollback.
- On flat surfaces: Even on level ground, engage the parking brake if the vehicle will be unattended for an extended period or if the gearshift system depends on a transmission lock.
- When parking in windy conditions: The brake helps resist movement caused by gusts or vehicle drafts.
- During roadside emergencies: If the regular brakes fail or exhibit reduced effectiveness, the parking brake can serve as a controlled, gradual deceleration method. Use it carefully to avoid lockup or loss of control.
In short, engage the parking brake whenever the vehicle is parked, particularly on slopes, uneven surfaces, or conditions where slight movement could cause damage or injury. The parking brake provides a redundant hold that complements the primary braking system and can prevent rollaways in many scenarios.
How To Use It Correctly
Proper operation varies by transmission type. For automatics, set the parking brake after coming to a complete stop and shift to Park if it is safe and feasible. For manuals, apply the parking brake after stopping, leave the transmission in gear, and release the clutch slowly to avoid shock loading. In colder climates, ensure the parking brake is not engaged while the brake fluid is frozen or when the system is cold to prevent binding. Never rely on a single method for securing the vehicle; combine the parking brake with the transmission lock or wheel chocks as appropriate.
- Engage fully: The lever should be fully tightened or the button pressed until it locks in place, with a perceptible hold on the brake components.
- Release properly: When ready to drive, release the parking brake gradually, ensuring no binding or grinding noises are present.
- Test after applying: Lightly press the accelerator to verify the vehicle remains stationary when the brake is released before proceeding.
Regular maintenance ensures reliability. Check for frayed cables, worn linings, or electronic actuator faults, and ensure the parking brake warning indicator functions correctly.
Important Safety And Maintenance Tips
Maintenance and correct usage are essential to ensure the parking brake operates as intended. Regular inspections should include the brake cables or electronic actuators, rear brake linings, and the release mechanism. On aging systems, signs of sticking, uneven braking, or unusual noises warrant a professional inspection. For automatic transmissions, avoid excessive reliance on the parking brake to hold the vehicle on a strong incline, and never park with the vehicle in gear on a steep slope if it could cause damage. In addition, store emergency devices such as wheel chocks for use in unpredictable parking scenarios and ensure the area around the tires is clear of obstructions that could interfere with brake operation.
- Regular inspections: Check for corrosion, wear, and proper tension in cables; test the electronic actuator’s response.
- Proper parking practice: Engage the parking brake on every stop, especially on hills, and combine with the transmission lock when appropriate.
- Emergency readiness: Know how to use the braking system as a backup and have wheel chocks available when parking on uneven ground or in the vicinity of traffic.
By following these practices, drivers enhance vehicle stability, reduce transmission load, and improve overall safety during parking and in case of brake system issues.
Common Myths About Parking Brakes
Several myths persist about parking brakes. One misconception is that they are only for emergencies; in reality, they are a routine safety feature designed to secure a parked vehicle. Another belief is that applying the parking brake on a level surface serves no purpose; however, it minimizes load on the transmission and can prevent creeping. Some drivers assume the parking brake should be released abruptly; proper technique involves a smooth release to avoid wheel lock or sudden shifts. Understanding the actual role of the parking brake helps drivers use it effectively and avoid unnecessary wear.
