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What does the 'A' in a circle mean on a car?

1 Answers

DiStella

07/29/25 8:05pm

The 'A' in a circle on a car is the button for the Auto Hold system. The Auto Hold system is a technical application that enables automatic handbrake functionality while the car is in operation. This technology allows drivers to avoid prolonged braking when the vehicle is stationary and prevents unnecessary rolling when the automatic electronic parking brake is engaged. The working principle of the Auto Hold system lies in the brake management system controlling the four-wheel brakes through the extended functionality of the electronic handbrake. The Auto Hold system is an extension of the electronic handbrake and is controlled by the ESP (Electronic Stability Program) components. When the vehicle is temporarily stopped and needs to be restarted within a short period, the parking function is handled by the ESP-controlled brakes.

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Where is the brake located in an automatic transmission car?

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