View Single Post
Old 03-31-2017, 08:03 AM   #38
TJay74


 
Drives: 17 Camaro SS 1LE & 16 Sierra AT CC
Join Date: Nov 2016
Location: Norman, OK
Posts: 2,424
Quote:
Originally Posted by Klayman View Post
My window started fogging bad the other morning, turned on the front defogger.....went away in about 10 seconds....
We are seeing this when we run the AC though, not from the defroster. The AC is blowing cold air up thru the defroster vents onto the windshield, those spots get cold and then condensate on the windshield.

That isn't normal and shouldn't happen. I have owned 10+ new GM vehicles, my last 3 have all had some of the weirdest HVAC programming I have ever seen. Case in point...

On my 2017 1LE. It was cold out yesterday morning (40° outside). I turn the temperature control to 74° and a comfortable amount of heat comes out of the system to my liking. Yesterday as I get off work it is 65° outside, I want the windows down but it is a little chilly so I want some heat as well. Well now that same 74° on the HVAC wont produce any heat. I had to ramp it up to 83° in order to get any heat out of the system.

This is the 4th time I have seen where if it is cold outside I can get heat around 73° on the system, but if it is warm outside I have to go above 80° in order to get any heat from the system.
TJay74 is offline   Reply With Quote