cabin air setting keeps switching to outside air (1 Viewer)

[Brandon Ryder]

Does anyone know why my recirculate air setting keeps defaulting to outside air? It will do it automatically, even when I'm not changing settings. I know it will do it when I turn the setting to defroster or even turn on the A/C, but it sometimes does it even when no settings have been changed. It's annoying because it sucks in fumes, especially when I'm at or near a gas pump or in traffic. I often have my kid in the back seat, and I don't like him breathing the fumes. It drives me NUTS!
Anyone know how to prevent this? Does it have to do with the temperature setting?

 

[Nightbrew]

Mine has done this for years. However, I try to keep mine on fresh air unless I need to recirculate with a/c cranked up. I can’t prove it, but I think it switches more often when the temp is on the cooler side.

 

[Ayune]

My 1998 LC stays where I put it. Do you have the fan control set to AUTO?

 

[Brandon Ryder]

My 1998 LC stays where I put it. Do you have the fan control set to AUTO?

Negative. I never use auto