What does the circle a button in the car mean?

1 Answers
DelaneyDella
07/29/25 10:56pm
The circle a button in the car refers to the auto-hold function, which is an extension of the electronic parking brake. Controlled by the ESP component, it manages the braking of all four wheels to prevent the vehicle from sliding. To activate it, simply press the button after starting the vehicle. The function of the circle a button in the car is to provide precise parking force through a slope sensor controlled by the system. During startup, the parking control unit calculates data from the clutch distance sensor, clutch engagement speed sensor, and throttle pedal sensor. When the driving force exceeds the running resistance, the parking brake is automatically released, allowing the car to start smoothly.
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