Is the Car Circulation Light On Indicating External or Internal Circulation?

[McSerenity]

When the car circulation light is on, it indicates internal circulation. The method to use the car's internal circulation is: press the internal circulation button inside the car. In the internal circulation state, the air exchange channels between the inside and outside of the car are closed. When the fan is off, the airflow inside the car does not circulate. When the fan is on, the air drawn in comes from inside the car, forming an internal airflow circulation. The purpose of the car's internal circulation is to block out polluted air, prevent external gases from entering the car, and ensure clean air inside the vehicle. The functional buttons inside the car include: 1. Headlight washer button: used to control the automatic headlight cleaning function; 2. Parking sensor button: pressing this button manually controls the parking sensors; 3. Central locking button: the control button for the car's central door locks.