Is the recirculation light on or off?

[WyattMarie]

The recirculation light being on indicates that the recirculation mode is active. Here is a detailed introduction to the car's recirculation function: 1. Recirculation button: The recirculation and fresh air buttons may be on separate controls or combined into one button. When the indicator light is on, it means the recirculation mode is active. If the buttons are combined, when the indicator light is off, the system is in fresh air mode. 2. Function of recirculation: The air conditioning recirculation mode prevents outside air from entering the vehicle. When outside temperatures are extremely high or low, using recirculation mode allows the AC system to quickly cool or heat the cabin. If equipped with an air quality sensor, the system will automatically activate recirculation when detecting increased levels of harmful substances in outside air, preventing their entry into the cabin. Once outside air quality returns to normal levels, the system automatically deactivates recirculation, allowing fresh air to enter again.