What does the AC in a car's air conditioning mean?

[DiMolly]

AC in a car's air conditioning system refers to the air conditioning cooling switch, which is the power switch for the air conditioning compressor. Here is more information about automatic air conditioning: 1. The automatic air conditioning system will automatically adjust the interior temperature based on the temperature difference between the inside and outside of the car. 2. When using the air conditioning for heating in winter, the A/C light being on does not help with heating; instead, it causes unnecessary power loss due to the compressor's operation. Additional information: When the AC button is pressed, the car's air conditioning compressor will start working, and the air blown out by the blower will be cold. When the AC is turned off, the electromagnetic clutch of the air conditioning compressor will disengage, stopping the compressor's operation, and the car's air conditioning will exit the cooling mode.