How to Solve the Problem of Parking Brake Failure?
2 Answers
The solutions for parking brake failure are: 1. Release the accelerator pedal; 2. Shift the gear to manual mode and manually downshift from high gear to low gear sequentially; 3. When pulling the handbrake, hold the release button and pull the handbrake continuously without locking it; 4. After the vehicle stops, shift into park. The reasons for sudden brake failure while driving are: 1. Impurities in the brake master cylinder or poor sealing; 2. Failure of the vacuum booster pump; 3. Dirty brake fluid; 4. Leakage in the brake master cylinder or wheel cylinder; 5. Air leakage in the air reservoir or pipeline connections; 6. Severe overloading; 7. Carbonization of the brake drum; 8. Insufficient brake fluid in the brake master cylinder; 9. Wear of the brake master cylinder piston.
My last encounter with a parking brake failure was absolutely heart-stopping! That day, I parked on a slope of a small road, pulled the handbrake, and got out for a walk. In the blink of an eye, the car started rolling backward and almost hit a pedestrian. I immediately ran back to the car, shifted into gear to stop it, and broke out in a cold sweat. Later, when I got home and parked on level ground to inspect it, I found the handbrake cable was loose. I tightened the adjustment screw slightly with a wrench and fixed it myself. This taught me to always pay attention to the tightness and the crisp sound when pulling the handbrake, especially in cold weather when aging accelerates and cables are more prone to snapping. Common causes of handbrake failure include loose or stuck cables, or worn rear brake shoes. I recommend everyone park on level ground first, test the handbrake a few times to feel its responsiveness, and have the system checked regularly during maintenance. Don’t let small oversights lead to big disasters. Safety first—don’t wait for an accident to take action like I did!
