Most drivers notice that little dashboard button showing a car with a circular arrow, but many aren’t sure what it actually does. That symbol is your air recirculation setting, and using it at the right time can make your ride far more comfortable—especially during extreme heat, heavy traffic, or dusty conditions.
When recirculation is OFF, your climate system pulls fresh air from outside, filters it, then cools or warms it before it enters the cabin. When you turn recirculation ON, a small door inside the ventilation system closes, and the car begins reusing the air already inside. In other words, it creates a closed loop instead of constantly pulling in new outside air.