Should You Turn on AC When Using Air Conditioning in Cold Weather?

[EmmettRose]

You don't need to turn on AC when using air conditioning in cold weather. Here are specific details about the car air conditioning AC button: 1. Principle of not using AC in winter: When using car air conditioning in summer, you must press the AC button to activate the cooling function. However, the heating system simply utilizes the car's internal heat circulation and doesn't require activating the air conditioning compressor at all. Therefore, you only need to adjust the air conditioning controls for heating without turning on the AC switch. 2. Function of the AC button: The AC button controls the air conditioning compressor, which has little use in winter except when you need to defog the car windows. Most of the time, you'll just be using the heating function.