How to keep recirculate air on without fan on

[etcadman]

I'm still confused how to activate recirculate air without fan nor other environmental settings. I've found consistently this mode will only hold for 5 minute the resume to letting outside air in. I'm trying to keep cold outside air out without having to turn on the heater. Or during fire season to keep the smoke out. Occasionally I've been able to get this mode stay on for longer times, but I don't know how to activate it. A standard push on the recycle button only holds for 5 minutes. No change with long (3+ seconds) push.

Does anyone know how to accurate start and hold the recycle mode on?

Thanks, Ed

 

[James Bradley]

Not sure what year you have, but on my '22 I tried this morning to set these same conditions. I turned the climate system to off and then pushed the recirc button, stayed that way for the rest of my drive (20+ minutes)

I know it doesn't help you at the moment but could be a model year thing or there might be something else involved? Outside temps are mid 70's today so no heater but I can try tomorrow when it's cooler.

There is a windshield anti fog sensor that might be forcing it to come out of that mode?

 

[James Bradley]

Not sure what year you have, but on my '22 I tried this morning to set these same conditions. I turned the climate system to off and then pushed the recirc button, stayed that way for the rest of my drive (20+ minutes)

I know it doesn't help you at the moment but could be a model year thing or there might be something else involved? Outside temps are mid 70's today so no heater but I can try tomorrow when it's cooler.

There is a windshield anti fog sensor that might be forcing it to come out of that mode?

I had a rare chance to test this last week- we got some cooler temps and rain. I was curious if this could be a humidity thing- I was able to replicate the exact scenario you described. Recirc would turn off after about 5 minutes, so I would expect this to be an anti-fog sensor turning that off