
Electronic parking brake failure is an issue that car owners cannot resolve on their own and requires repair at a 4S shop. The electronic parking brake, also known as the electronic handbrake, is commonly equipped in many mid-sized and compact cars. Unlike traditional mechanical handbrakes, the electronic handbrake system features two handbrake motors on the rear wheels. When the electronic handbrake button near the gear shift is pressed, these motors clamp the brake pads, preventing the car from rolling. The electronic parking brake is located on both rear wheels. If it fails, the car needs to be lifted, and the rear wheels must be removed for repair.

Having issues with the electronic parking brake can be really frustrating—I’ve experienced it myself. That time, after parking, I couldn’t release it no matter what, and the display showed a red light. First, I restarted the engine to let the system initialize, but it didn’t help. Then, I checked the fuse box, located the corresponding fuse, and pulled it out to see if it was blown—sometimes an overload can burn it out. If the fuse was fine, it might have been a sensor or circuit board failure. Never force the car to move, as it could damage the braking system or even the tires. In the end, I called a tow truck to take it to the 4S shop, where the technician diagnosed it as a software glitch with their computer and fixed it by flashing a new program. A reminder to everyone: during regular maintenance, ask the technician to check the wiring of the electronic systems to avoid similar issues.

As someone who frequently deals with such issues, I've found that electronic parking brake failures often occur at a few key points: sensor contamination, circuit shorts, or software bugs. First, try simple methods like turning off the engine and waiting a few minutes before restarting to let the system reset. If the dashboard light remains on, check the fuse—usually located in the box under the driver's seat, with diagrams in the manual. If that doesn't work, visit a professional shop where they can use diagnostic tools to read the fault codes and accurately determine whether the motor is faulty or there's a wiring issue. Regularly clean the undercarriage area when parking to prevent debris from jamming sensor components. Remember, addressing issues promptly can prevent minor problems from turning into major repairs.

Oh no, my new car's electronic parking brake failed after just six months, which really scared me. First of all, don't drive fast. Pull over, turn off the engine, wait for half a minute, and then try the release button again. If that doesn't work, check the manual for emergency procedures—some cars have a manual release mechanism, usually found in the toolkit in the trunk. Still no luck? Call for roadside assistance or contact the 4S store directly. Never tinker with the electrical system yourself. Safety first, avoid risks.

I've driven many cars in my life, and electronic system failures are quite common in modern vehicles. The early mechanical handbrakes were simple and reliable, but the electronic versions are more convenient. When problems occur, such as difficulty releasing, first make sure the vehicle isn't parked on a slope, then try restarting the power. If it happens frequently, check the battery voltage as low charge can affect system operation. During repairs, the technician mentioned that internal module wear could also cause malfunctions. Regular maintenance and keeping components clean can extend their lifespan.


