HELP: 2026 Bighorn - Defrosters barely working

[OCD Solutions]

What engine do you have?

 

[Granite Goat]

What engine do you have?

3.0 SO

 

[George Bednar]

So now that I know how to get full air out of the defrosters, I still feel that the defroster sucks on this truck. Last night, at 17°F, 20 minutes after starting, I still had ice accumulating on the upper portion of the windshield.

Try putting the sun shades at the top of your windshield down. I do that and I think it keeps the hot air closer to the windshield