What does the circle a button on the car mean?

1 Answers
DiTaylor
07/29/25 9:46pm
The circle a button on 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 auto-hold function uses a slope sensor to provide precise parking force through the controller. During startup, the parking control unit calculates information 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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