What does the off button in the car mean?

[VonHaven]

The off button in the car means to turn off. This button is commonly found on the car's central console. The off button can control the car's air conditioning. When the car's air conditioning is on, pressing the off button will turn it off automatically. Pressing the off button again will resume the air conditioning. The off button is also commonly seen on the car's light lever, usually used to turn off the car lights. An 'a' above the off button represents the engine auto start-stop function, which is enabled by default. If you want to disable the auto start-stop function, pressing the off button will turn it off. If the off light on the car's dashboard is on, it means the car's stability control system has been turned off. The off light mainly refers to ESP off, which is an active safety device in the car. This system is also enabled by default, primarily to prevent the car from skidding or fishtailing while driving.