What does it mean when the car's internal circulation light is on?
1 Answers
The internal circulation light being on indicates that the internal circulation mode is activated. Internal circulation button: If the internal and external circulation buttons are separate, each controls its respective circulation state. The light being on means that function mode is active. If the internal and external circulation functions are on the same button, when the indicator light is on, it is in internal circulation mode. When the indicator light is off, it is in external circulation mode. Function of internal circulation: The purpose of the air conditioning internal circulation mode is to prevent outside air from entering the car. When the outside temperature is very high or very low, selecting the air internal circulation mode allows the air conditioning system to operate in this mode for a short time, quickly lowering or raising the temperature inside the car. If equipped with an air quality sensor, when the system detects an increase in the concentration of harmful substances in the outside air, it will immediately and automatically activate the air internal circulation mode to prevent outside air from being drawn into the car. Once the concentration of harmful substances in the outside air decreases to normal levels, the system will immediately and automatically turn off the air internal circulation mode, allowing fresh air to enter the car again.