What does EPB system malfunction mean?
2 Answers
EPB system malfunction refers to a failure in the electronic parking brake. EPB stands for Electronic Parking Brake system, which is the electronic handbrake. Below is relevant information about the electronic parking brake: 1. Working Principle: Its working principle is the same as that of a mechanical handbrake, both achieving parking brake control through the friction generated between the brake disc and brake pads, with the control method changing from the previous mechanical handbrake lever to an electronic button. 2. Electronic Parking Brake System: The Electronic Parking Brake System integrates the temporary braking function during driving with the long-term braking function after parking, and achieves parking braking through electronic control technology.
I remember one time when I was driving, the EPB system malfunction really freaked me out. It's essentially an issue with the electronic parking brake—either the handbrake button wouldn't respond after parking, or the brake wouldn't release, making a loud creaking noise when the car moved. Common causes include sensors clogged with dust, burned circuits in the control module, or the small motor getting stuck, possibly due to water ingress or lack of long-term maintenance. Once, it happened after rain, and I went straight to the shop to have it checked. The technician said the software needed an update or a small part needed replacement. I’d advise against trying to fix it yourself to avoid damaging other systems. If this happens while driving, find a safe spot to stop, check for warning lights, and try restarting the car. If it occurs frequently, get it repaired immediately—otherwise, the car might not stay parked securely and could roll downhill, which is very dangerous. These malfunctions are actually quite common, especially in older vehicles.
