What does your car’s air recirculation button do?

Ok, I’ll admit that I don’t recall what my car’s air recirculation button does. I once knew it, but forgot. So I asked a mechanic last time I had it serviced and found out the answer.

If you press the air recirculation button in your car, the fans will stop bringing in outside air and will instead circulate the air already inside the cabin. This feature can help your air conditioning cool down your car faster in hot weather or prevent pollution, odors, allergens, and exhaust fumes from entering your vehicle. Additionally, it can help you save on gas!

If you’re having trouble keeping your car cool on extremely hot days while driving, look for the small button with a circular arrow inside a car drawing. It’s usually located near your AC button or on the dashboard. This is the air recirculation button, and chances are, you’re not using it as much as you should!

The air recirculation button is typically situated close to your other climate controls and often features a circular arrow symbol, sometimes enclosed within a car shape.

When you activate the air recirculation button, it stops outside air from entering and instead recirculates the air already inside your car through the fan blower. This can help keep unwanted air out, extend the life of your air filter, and improve the efficiency of your air conditioning system.

By controlling a flap that opens and closes, the air recirculation button either blocks outside air (when turned on) or allows it to enter (when turned off).

During the summer months, using the air recirculation button can significantly speed up the cooling process inside your car. When you bring in outside air, your AC system must constantly cool down hot air. However, by recirculating the air, your AC system can focus on cooling down the already-cool air.

This feature can also help reduce fuel consumption since it eases the workload on the air conditioning system. Air conditioning can increase fuel consumption by up to 20% because it draws power from the car’s engine. Recirculating the air helps alleviate this strain.

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