What is the aoff button?

[McGiselle]

This is the off button for the auto start-stop system, where 'off' means to turn off. Cars equipped with the auto start-stop function have an off button, and pressing it can deactivate the auto start-stop. The off button for the auto start-stop is a circle with an 'A' inside and 'off' below the circle, indicating the deactivation of the auto start-stop. Cars with the auto start-stop function will shut off the engine when stopped at a red light, provided the battery has sufficient charge and the engine coolant has reached normal operating temperature. If the battery charge is insufficient, the auto start-stop system will not function, and the system's indicator light on the dashboard will flash yellow. If the system is operational, the indicator will flash green. When the aoff light is on, it means the vehicle's engine auto start-stop function is active. This function effectively protects the engine from damage, reduces fuel consumption, and is very practical. The aoff button is primarily used when the car is moving at low speeds or repeatedly stopping, helping to automatically shut off the engine, reduce idle time, and consequently minimize engine carbon buildup. For the auto start-stop function to work, certain conditions must be met: the engine coolant temperature must reach at least 85 degrees Celsius, and the engine oil must also reach operating temperature. After the car starts, the auto start-stop function enters the active mode. For example, when approaching a traffic light, stopping and pressing the brake for 1 to 2 seconds will automatically shut off the engine. To restart when the light turns green, lightly press the accelerator or turn the steering wheel, and the engine will start again. In some manual transmission cars, the computer determines the need to shut off the engine based on actions like pressing the clutch, shifting to neutral, and pulling the handbrake. The engine will restart when the clutch is pressed again. However, in congested traffic when moving slowly, reversing into a parking space, or on steep slopes, you may choose to turn off this function. When driving through water, always remember to turn off this function to prevent water from entering the exhaust pipe and then the engine, which could prevent the engine from starting. Precautions for auto start-stop: Avoid using the start-stop system on slopes; Turn off the system during irregular stop-and-go traffic; Do not activate the system when the air conditioning is on; Disable the system during low-speed parking; Do not refuel when the start-stop system has shut off the engine; It is advisable to turn off the system when the fuel light is on; Always deactivate the system when driving through water.