Can turning on the AC in a car provide heating?

[McParker]

Turning on the AC in a car cannot provide heating. The AC button is the switch for the air conditioning compressor. In summer, when using the air conditioner, you need to press the AC button to turn on the cold air. The heating function in a car utilizes the internal heat cycle of the vehicle and does not require the air conditioning compressor to be activated. Therefore, to turn on the warm air, you only need to adjust the air supply button of the air conditioner without turning on the AC switch. The car air conditioning system, abbreviated as car AC, is used to adjust and control the temperature, humidity, air cleanliness, and air flow inside the car cabin to a suitable state, providing a comfortable environment for passengers. The warm air for heating in the car comes from the heat generated by the engine during operation. When the engine's cooling system dissipates heat from the engine, the dissipated heat is sent into the car through a fan, forming warm air. When the heating is not in use, the fan stops, the heating vent closes, and the dissipated heat is completely released into the atmosphere.