What does the A button on an automatic transmission car mean?

[SaraAnn]

Automatic transmission car A button is the automatic parking function, which refers to a function that enables the driver to avoid unnecessary sliding of the vehicle without the need for long-term braking or activating the electronic parking brake. This function can automatically activate the four-wheel braking when the vehicle is waiting at a red light or stopping on a slope. Even in D gear or N gear, there is no need to keep stepping on the brake or using the handbrake, and the car remains stationary. The automatic parking function provides accurate parking force through the slope sensor by the controller. When starting, the parking control unit calculates the information provided by the clutch distance sensor, clutch engagement speed sensor, throttle pedal sensor, etc. When the driving force is greater than the driving resistance, the parking brake is automatically released, allowing the car to start smoothly, greatly reducing the time wasted based on experience judgment.