Auto defogging windshield

[ucmndd]

Maybe it's just me, but I definitely remember a time in my childhood when the solution to fogged up windshields was to roll down the windows. After some shivering by the passengers, the windshield would defog. Did everyone do this, or was this a "frugal" solution?

Putting the windows down keeps things from getting WORSE from a bunch of warm humans piling into a cold car and exhaling hot humid breath in a closed space, but has no particular effect on actually defogging the windows.

Once the cabin heats up enough to raise the dewpoint your breathing isn’t as much of a problem so you can put the windows back up.

 

[Big Earl]

Interestingly, I've recently gotten a 2023 M3 as a trade-in for a 2018 M3. Being the whacko I am, I've been Reading the Manual.

So, the defogger/defroster on this car has three, count them, three! settings.

Off.

Defog.

Defrost.

Off is colorless; defog lights the indicator green; defrost lights the indicator red. Hitting it again goes back to colorless.

Is this standard for all Teslas, or just the ones with a heat pump?

This has been the case since the 2012 Model S. The icon colors are blue and red.

 

[integraguy2001]

anyway to defog using the app? the sunrise glare is crazy in the morning when i drop my kid off school. I had to wait 5 mins for the fog to go down. need a better option.