[Alter]

Now that its getting colder here the windows, especially around the outer edge of the windshield of our 2012 Terrain isn't completely defogging and I don't remember it happening last winter. I've tried all kinds of different settings and turning the heater on high heat and fan, the fog is still there. I have booked a appointment with the dealer and all he said is that there might be a software update?????.
I'm hoping I'm not the only one that has this problem and have something more I can go to the dealer with other than a couple of shrugs and hope for the best. I did find a equinox thread about fog problems but it was geared to outside the windshield and on hot days..I have the opposite problem with being cold outside and fogging inside the vehicle.
Something else i've noticed is that when the car is fully heated up and if you idle, the heater blows mediocre heat on max heat and then gets somewhat hotter more when your driving but even with full heat I don't think it the heater blows all that hot.

 

[Terry]

Re: Fogging of windows.

Hello.

You may have already tried this, but make sure your system is NOT set on "re-circulation". The only times I have had this problem with my Terrain (or any other vehicle) has been when I've discovered that the "recirc" button had been inadvertently pushed on. Good Luck!!

Terry

 

[Alter]

I did figure out the problem after a bit of research. My wife and I began to use electronic cigarettes in March and did "vape" in the vehicle. Through reading in other forums I found out that ecigs leave a residue inside the windows of your car, not as bad as the yellow gunk left behind from tobacco but a clear film that does that doesn't show up when its warm out but once it gets cold it rears its ugly head.
The dealer had no answer or explanation of whats going on so I had gone back to them to tell what the problem really was for the next person. I wiped all the windows with a microcloth and problem solved, now a couple times a month I wipe all the windows and haven't had it fog again.