What does AC mean in a car?

1 Answers
DeCassidy
07/24/25 6:33pm
In-car AC refers to the air conditioning cooling switch. Pressing the AC button activates the air conditioning to adjust the temperature according to the set value, while turning it off only engages the air blower for ventilation without temperature regulation. More details about car air conditioning are as follows: 1. After turning on the air vent in a car, the air conditioning will blow air because the blower in the system starts operating. However, the cooling function hasn't been activated yet since the air conditioning compressor remains idle. 2. Only when the AC switch is turned on does the vehicle's computer receive the signal and subsequently instruct the air conditioning compressor to start working, initiating the cooling process of the car's air conditioning. To get cold air, you need to adjust the temperature selector to the blue zone and turn on the fan switch.
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