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

[ReaganRose]

Automatic transmission car A button is the automatic parking system. The automatic parking system is a technical application that can realize the automatic handbrake during the operation of the car. This technology allows the driver not to need long-term braking when the vehicle stops, and when the automatic electronic parking brake is activated, it can avoid unnecessary sliding of the vehicle. The working principle of the automatic parking system lies in the brake management system's control of the four-wheel brakes through the extended function of the electronic handbrake. In other words, the automatic parking system is an extended function of the electronic handbrake, controlled by the ESP component. When the vehicle is temporarily parked and needs to be restarted within a short period of time, the parking is completed by the ESP-controlled brake. The computer will measure the levelness of the vehicle body and the torque of the wheels through a series of sensors, make a judgment on the tendency of the vehicle to move, and apply an appropriate braking force to the wheels to keep the vehicle stationary.