Does the Electronic Parking Brake Have an Automatic Release Function?

[VanNora]

Electronic parking brakes do have an automatic release function. When the car is turned off or the seatbelt is unfastened, the electronic parking brake will automatically engage to assist the driver. Upon re-entering the car, fastening the seatbelt, and closing the door, simply pressing the accelerator pedal will automatically release the electronic parking brake. If the electronic parking brake is accidentally pulled while driving at high speed, it will not respond immediately. Instead, it will only activate when the vehicle speed approaches a stop (typically below 10 km/h). The electronic parking brake is a technology that uses electronic control to achieve parking braking. Its working principle is the same as that of a mechanical handbrake, both relying on the friction generated between the brake disc and brake pads to control parking braking. The only difference is that the control method has changed from a mechanical handbrake lever to an electronic button.

[IsaacMarie]

I've driven several cars from different brands, and the electronic parking brake does have an automatic release function. It will disengage automatically as long as certain conditions are met: for example, when the seatbelt is fastened, the gear is shifted to D or R, and the accelerator is lightly pressed. This design is particularly convenient for hill starts, eliminating worries about rolling back. However, in rainy weather, be cautious of brake discs freezing up - in such cases, it's advisable to release it manually first. Once when I drove a colleague's SUV to the mountains, I noticed its automatic release responded slightly slower in low temperatures, which might be due to the system's protective mechanism. Overall, it's much more effortless than traditional handbrakes, especially practical during frequent stop-and-go in traffic jams.

[OJesse]

From a technical perspective, the automatic release of the electronic parking brake is actually controlled by the ECU. When sensors detect that both the throttle pedal signal and transmission gear position meet the conditions, the controller sends commands to the actuator motor to release the brake. Some premium cars also feature AUTO HOLD function, which automatically maintains braking at traffic lights - you can simply press the accelerator to start moving. However, I recommend developing the habit of manual confirmation, especially when encountering steep slopes or just after car washing, as wet brake pads may affect response speed.

[Kaden]

The automatic release of the electronic parking brake is essentially a safety assistance feature. Engineers considered two dimensions during its design: preventing misuse and ensuring convenience. The system only releases when it detects clear driving intent, avoiding dangerous situations like sudden releases during reversing in some early models. Most modern models incorporate seatbelt detection—if the driver isn't belted, the brake won't release even when the accelerator is pressed. This design proves particularly useful when navigating tight turns in underground mall parking lots, helping prevent scrapes.