Windshield and Rear view mirrors defrost time

[M3Edm]

I know other cars have this issue too but it seems to be worse on the Model 3. Now that it's minus 10 Celsius or colder, when I pull into a parking garage, the windshield and rear view mirrors frost up upon pulling into the underground parking garage.

For the windshield, I can get it defrosted in about 15-30 seconds but I'm still driving "blind" for a bit.

For the rear view mirrors, they don't defrost until I pull into the parking spot (~2 minutes). This makes it very tough to back into a parking stall. I don't trust the automated parking yet with concrete pillars.

Any recommendations on either preventing this from happening or speeding up the defrosting process?

 

[brandonee916]

Be sure to turn on your Rear Defroster prior to entering.... that's crazy cold!

 

[M3Edm]

Be sure to turn on your Rear Defroster prior to entering.... that's crazy cold!

Crazy cold is when it’s minus 30 in a couple months!

 

[coleAK]

I think the defrosters work faster then our MB e class and at a similar speed to my LX570. It’s been similar temps here in Alaska over the last week -15 to 0 C. I will say in thinking about it the rear defroster seems small since the roof morphs into the rear window.