Hello all!

I'm a brand new member to this forum and i just purchased a used 2014 lexus IS. I love the car and all but i just have one question regarding the AC and recirculate/fresh air function.

I tend to have my fan on all the time, whether the AC is on or not just to have air flowing through the car. I noticed that if i have only the fan on, when i turn on the AC, the system automatically changes over to recirculate. This is the opposite of what I usually do, I usually like to start AC with fresh air coming in, and then after about 10 minutes or so, i'll change it to recirculate.

Is this a default setting that i have to live with or can this function be changed (perhaps at the dealer?) I would prefer that the car remain in "fresh air" mode when i turn on the AC, not to automatically switch over to recirculate.

Any advice would be greatly appreciated!

 

I think it does that automatically because thats the fastest way to cool the air inside of the car.

 

Gotcha. OK. it's not a big deal, it's just my habit from over the years...thanks!

 

That's pretty much it in a nutshell.
The A/C cools the cabin by removing moisture, so if it was on Fresh Air, it would be a never ending battle to remove the moisture from inside the cabin.
The downside is if you're driving a long time with the A/C on, the air will start to get stale...them you'll want to hit the Fresh Air.

 

If I just have the climate set to Auto, and it's warm out, sometimes the Fresh Air mode will still be active. �� I have seen it switch to recirculate before... I think. It always seems to function, so I don't question it. �� Just wanted to point out that it's not as simple as "If A/C, then recirculate", to your point.

 

Got it. Thanks for the info!

I'm not sure but in my case, it's always the case. Everytime i hit the AC on button, it changes to recirculate...haha. anyways it's all good.

 

leave it on auto and theres no need to hit the ac button. it will recirculate and not by itself as the system sees fit.