Took a 500+ mile trip this weekend...

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Sep 8, 2021 | 10:00 AM

#16

r1lee

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Joined: Sep 2006

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From: ON

Quote:

Originally Posted by SW17LS

in hot weather the Lexus system never leaves recirculate unless you force it to. It will stay in AUTO and fresh air mode, but you bump out of the auto smog sensor by doing that. As soon as you turn the recirculate back to AUTO it will go back inci recirc as long as the outside temp is over about 75 degrees,

yeah that was my assumption, that Auto would still be on even if you turn off/on recirculating. But by default, the system will turn on Recirc when its Hot outside and you are using the AC. It's only when you use Heat that Recirculating is set to off as default.

Sep 8, 2021 | 10:21 AM

#17

bitkahuna

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thanks steve. so TWO auto settings, well that's dumb, lol.

Sep 8, 2021 | 10:55 AM

#18

SW17LS

Lexus Fanatic

Joined: May 2012

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From: Maryland

Quote:

Originally Posted by bitkahuna

thanks steve. so TWO auto settings, well that's dumb, lol.

The auto smog sensor is a cool feature, EXCEPT that it wont switch out of recirculate when its over 75. Thats a unique Toyota/Lexus thing, my Mercedes for instance has no such smog sensor