2022 2500 Defrost fail

[Pitpig]

So, I’m leaving Dallas the other morning heading east on I 20. 16° outside and a winter mix starts falling. Before long, I’m leaning on the console looking out my front windshield because both corners of the windshield has iced over. Picture is what I would see if I sat up in my seat.
I would think this would be a big safety issue. But, as I’m saying bad things about Ram, a Ford F150 passes me with the same problem. This is the first time I’ve ever seen this happen.

 

[Tulecreeper]

Freezing rain is just coming down faster than the warm windshield can melt it off. Rare, but it happens.

 

[Pitpig]

Sounds like a good explanation, but why only on the corners? ‍

 

[jejb]

Didn't realize you'd posted the same thread twice. I posted in the other one.

 

[Tulecreeper]

Sounds like a good explanation, but why only on the corners? ‍

Colder part of the windshield.