Fogging Up

By bluegypsy
January 3, 2010 in 1999-2013 Silverado 1500 & Sierra 1500

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508gm1

Posted December 31, 2011

I had the exact same problem as you guys. I took it to the dealer and of course, they could not duplicate the problem. I mentioned a software update to the hvac module. They updated the software and there has not been a noticable problem since.

Cheers, Brendan

PGDriver

Posted December 31, 2011

Well after being part way through my second winter I now consider the fogging/icing problem fixed, even with a truck full no problems.

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