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How is your defroster (not defogger) working?

SteelersFan

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Hi all. Been mighty cold here in snowy MN, and noticed the defroster is really struggling to keep up with keeping windshields clear. Wondering how everyone else's is doing and if I need a service ticket or to just suck it up? First winter with the Rivian, my non-heat pump Model 3 fought this as well but not as bad.

Thanks in advance!

Some random points:
Outside temps were at or well below 0F.
I park (and charge) in a semi-heated garage (50F or better).
Not referring to clearing the exterior of the windshields, this is the moisture forming inside from human/canine respiration, etc.
I am selecting the red defroster (2 presses) not the blue defogger (1 press).
Air blowing on HI defrost is far from hot (normal?)
When on auto, truck does a nice job keeping cabin warm
Rear and mirror defrosters work great
Couldn't care less about range loss, to be expected with the cold and batteries.
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Arky

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Not referring to clearing the exterior of the windshields, this is the moisture forming inside from human/canine respiration, etc.

I am selecting the red defroster (2 presses) not the blue defogger (1 press).
Use the defogger - it will do a better job at fixing the problem you're trying to solve. In my experience it clears up very quickly.
 

Dark-Fx

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Works fine but I don't have a canine currently.
 
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SteelersFan

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Use the defogger - it will do a better job at fixing the problem you're trying to solve. In my experience it clears up very quickly.
Will try, thanks. Unsure about making the A/C run with those exterior ambient temps.
 

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Dark-Fx

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crashmtb

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Will try, thanks. Unsure about making the A/C run with those exterior ambient temps.
Greetings from Winnipeg! most cars I’ve had automatically run the AC in max defrost/defog mode. Perfectly fine to run the AC when it’s cold. Helps dehumidify the interior too. Additionally, keeps the compressor lubricated - better than it not running for 6 months.
 

Arky

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Will try, thanks. Unsure about making the A/C run with those exterior ambient temps.
You need the AC to remove moisture from the air. I would assume the defroster is much more focused on heat so it won't blow as dry cool air.

At least when I tried it I only had to have the defogger on for a minute or so before it all just disappeared then I went back to normal cabin heat/fan/etc. This was at ~15F. I haven't done real extensive testing with it because it just seemed to do what I wanted right off the bat.
 

thedole

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When I turn on defog and then cycle it off it fails to go back to my original setting of AUTO. I have to re enable AUTO climate every time I use defog which is a lot in the northwest.
 

SoCalTravels

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Cabin gets uncomfortable after a short time.
Ours too. I wish there was an option to adjust fan speed. Gets uncomfortably hot.
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