Automatic defog clobbering manual climate selection

[droxtal]

Recently observed this strange behaviour of the climate control system: in Auto mode the system was directing air to the front windshield defog vents, then I manually selected the cabin foot/body vents, after a couple of seconds the main display showed that the system defaulted back to the defog vents. The light on the Auto button remained extinguished.

I thought manual selections to climate control did not automatically get overriden. Curious to know if this is normal behaviour, did not see anything about this in the owners manual.

 

[Birkeland]

I see the same behavior in my Soul. No matter what setting I have the climate control on, it seems to go into defog-mode sometimes. And all I can do is being patient and wait until it is done.

 

[GizmoEV]

I wonder if the humidity/moisture sensor that is on the window behind the rear-view mirror is signaling that the windshield needs to be cleared or kept clear. Maybe that is what is going on.

 

[droxtal]

Could be, although it should really work that way only in Auto, I would have thought sensor input is bypassed once a manual selection is made. Not really a big deal in this case, but in general allowing the car to override manual input commands is somewhat disappointing...not the design philosophy I would have expected.

 

[fanbanlo]

If the Auto vent light blinks and prevent you from changing it, make sure you activate a/c first then it will allow to do anything.