Should You Turn on AC When Using the Heater?

[Anderson]

When using the heater, there is no need to press the AC button. Here is some additional information: 1. The AC button controls the air conditioning. In summer, pressing the AC button activates the compressor to provide cooling. 2. The heater does not rely on the compressor to generate heat. Instead, it transfers the heat produced by the engine into the cabin. Since the compressor is not involved, there's no need to press the AC button when using the heater. 3. Avoid directing the warm air toward your head for extended periods, as this can cause driver fatigue and compromise road safety. For prolonged use of the heater, it is recommended to slightly open the windows to allow fresh air circulation, ensuring adequate oxygen levels inside the car and keeping the driver alert. 4. When using the heater, start the engine and allow it to warm up first. Once the engine temperature gauge reaches the midpoint, turn on the heater and set the air circulation to 'external' to expel cold air from the cabin. After about 3 minutes, switch the air circulation to 'internal.'