Most all vehicles have a recirculation button with the AC controls in their vehicles. But many of us are unsure when to use it.
Well, the easy answer is to use it in the summer and turn it off in the winter.
The recirculation button simply takes the air from inside the car and recirculates it in the cabin instead of pulling fresh air from outside. On days when it is miserably hot outside, if you do not recirculate the cooler air in the cabin, than your AC system is pulling hot air from outside and trying to cool it. Using the recirculation feature will get your car cooler and will decrease the wear and tear on your AC system.
A tip, if your car has been baking in the sun, it’s better to roll the windows down and turn recirculate off for the first minute or so to get rid of the super-hot air inside the car before turning the recirculate on.
If you have passengers in the back seat, consider turning off the recirculation mode unit the cabin is cold, then turn on the recirculation button. This takes air from the front of the cabin and pulls it back through the system, so even though everyone up front stays cool, the air in the back can get stale and hot.
Also, any time you are stuck in traffic (summer or winter) be sure to use the recirculate. If you are pulling air from outside, then you are pulling in all the pollutants and carbon monoxide from all the traffic. Studies show that recirculating your AC can cut down on the pollutants entering your vehicle by 20% when stuck in traffic!
Also, remember to check your cabin air filter every 15,000 miles.
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