Electronic handbrake: how does it work – and what if it won’t release?

July 21, 2025

How does an electronic handbrake?

Instead of a cable you pull by hand, the electronic handbrake uses small electric motors at the rear wheels. Those motors apply the brakes electronically, often as soon as you turn off the car or press a button. In many cars, the handbrake comes off automatically as soon as you drive off. In some models, the electric handbrake is coupled with additional functions such as “Auto Hold. This automatically keeps the car in place when you stop, such as at traffic lights or on a slope. As soon as you press the gas pedal, the brake releases.

What are the benefits?

You no longer have to apply force and you can’t apply your handbrake too hard. Also, the button takes up hardly any space and looks sleeker.

What if the handbrake is stuck?

Then, all of a sudden, your car stalls. The button doesn’t do anything anymore. No click, no beep, no movement. Fortunately, a stuck electronic handbrake is rare, but when it happens, you literally stand still. Usually the cause is a dead or weak battery. Without power, the brake motors don’t work. Rust, dirt or worn parts can also block the brakes. In rare cases, there is a software error.

Your first reflex may be to push the button extra hard or accelerate, but that doesn’t help. Sometimes it is enough to restart the engine or charge the battery. It may also help to press firmly on the brake pedal while pressing the button. Some cars have a manual emergency release, often hidden behind a flap. But without a manual or experience, that’s hard to find. If all else fails, one option remains: the garage or ANWB.

Can it happen while driving?

A common concern is whether the electronic parking brake also engages suddenly while driving. Under normal circumstances, this is out of the question. The systems are designed to work only when the car is stationary or activated intentionally in an emergency. Should you press the button for a long time while driving, the system intervenes in a controlled manner and brings the car to a safe stop. But spontaneously stalling on the highway? That really is a fable.

Prevention is better than standing still

To prevent problems with the electronic parking brake, regular maintenance is important. During service, have the brake mechanics checked to make sure they remain clean and working smoothly. Especially in cars that are left outside a lot or used infrequently, dirt and rust can be a culprit. Also, keep your battery in good condition.