What are the possible causes of EPB failure?
2 Answers
There may be an issue with the electronic parking brake. Below is relevant information: Introduction: EPB stands for Electrical Park Brake, which is the electronic parking brake system. The electronic parking brake system relies on electronic control and uses a longitudinal acceleration sensor to calculate the slope. When an EPB failure occurs, you can press the foot brake down while also pressing the handbrake down, hold for about 20 seconds, and then lift the handbrake up to restore normal operation. Advantages of EPB: It replaces the traditional mechanical lever and tire cables, providing better assistance to the driver. The electronic parking brake button, which replaces the traditional lever handbrake, is safer than the traditional lever handbrake. The braking effect is not affected by the driver's force, turning the traditional lever handbrake into an easily accessible button.
I just encountered the EPB warning light issue two days ago and found it was caused by poor contact in the control button. These electronic parking brakes have super sensitive circuitry - even slight brake pad wear can trigger false alarms. I remember one time after driving in snow, melted snow water seeped into the caliper and caused it to freeze in position. If fault codes appear frequently, there's an 80% chance it's either the motor module or body control computer acting up. My advice? Avoid power washing near the wheel hubs during car washes - sand and debris getting into the EPB module can cause short circuits. Most importantly, never tow a car with the parking brake engaged - that can fry the electronics in minutes, with repair costs high enough to buy new tires.
