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Frost on outside of front window

Old 08-08-2018, 06:39 PM
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Join Date: Sep 2017
Location: USA
Posts: 4
Default Frost on outside of front window

ive had this annoying episode happen more then twice now. On very hot and humid days I get frost on the front and some on side windows. The a/c is on. My wipers won’t even remove the problem. I called my dealer and a service guy asked if I was using the a/c and defroster at the same time. I said I was, only because I thought it would help the problem. Last night it was so bad that I could hardly see out of the front. Any thoughts?
Old 08-09-2018, 07:21 AM
Conrad 16.5's Avatar
Senior Member
Join Date: Dec 2016
Location: Northern Illinois
Posts: 118

Frost? As in ice crystals? Sorry but no way your AC is making those windows cold enough to form frost. Fogging the windows yes, frost no.

If you have the AC mode set to blow cold air on the windshield, or if the defroster is on, and it's warm and humid outside, you can get some fogging of the windshield in the vicinity of the dash vent on the outside. Your wipers would clear that right off.
Old 08-09-2018, 08:51 AM
Join Date: Mar 2013
Location: ABE area, Pa.
Posts: 52

Turn the temperature up so the air isn't so cold blowing on the windows.
Old 08-09-2018, 05:47 PM
Senior Member
Join Date: Jan 2017
Location: Florida
Posts: 145

Turn the thermostat to half way between cold and hot. Turn on the defrosters. Happens to me all the time in Florida, but the humidity usually burns off by 9am.
Old 08-10-2018, 07:56 PM
banjoman's Avatar
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Join Date: Jul 2018
Location: north carolina
Posts: 6

my pickup does the same thing,,, fogs up the windows,,,, just the difference in temp and humidity from inside to outside.

terry m
Old 08-14-2018, 11:15 AM
topol's Avatar
Join Date: Dec 2015
Location: anytown usa
Posts: 62
Default solution

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