My truck has had this problem from the time it was made. They designed the defroster to work with the ac unit to produce dry air. But once the outside temp drops below 35 degrees the ac unit shuts off. With this setup it causes my windows to fog up with moist air requiring me to pull off the road until I can get the window cleared. Over the last two years I have almost wrecked due to not being able to see. I have contacted the dealer and Chevrolet and have not got any help.

- Aurora, IN, USA

Defrosters dont work it creates a very real safty hazard truck is undrivable when defroters are needed.

- Havertown, PA, USA

The defrost does not work well. It only seems to clear about a 2ft section of the middle of the window. Both passenger and driver sides of the windshield remain fogged up so you cannot see to the left or right side of the vehicle and could cause an accident.

- Hilliard , OH, USA

At temps starting around 35 degrees the defroster stops working and the inside windows fog up leaving no visibility at all. So far the only way to clear it is to open windows and wait. Not good when its cold. Moisture builds up like a steamy shower on a mirror. I have read lots of complaints about the same issue and if there isn't a recall to fix then there should be lawsuits filed against Chevrolet and this web site for not taking action. Or are we all supposed to wait until people start dying in accidents first?

- Racine, WI, USA

The contact owns a 2010 Chevrolet Silverado K1500. The contact stated that when it was raining the defrost would not function. All of the windows in the vehicle were cloudy. The vehicle was taken to the dealer twice for a diagnostic test and the technicians could not diagnose the failure. The vehicle was not repaired. The approximate failure mileage was 9500.

- Star Junction, PA, USA

The contact owns a 2010 Chevrolet Silverado 1500. The contact stated that the defroster was defective. The dealer was contacted who only provided a temporary fix to the problem by reprogramming the computer to direct more air to the side windows and applied duck tape on the grill next to the windshield. The modifications did not work. The manufacturer was contacted who offered no assistance. The vehicle was not repaired. The failure and current mileages were 7,300. Updated 03/15/11 updated 1/4/11

- Brownsburg , IN, USA

With frost on the windshield, engaging the defroster will melt the frost on the exterior of the window, but it also wets the inside of the cab, causing all of the windows to have fog which will not let you see. This also occurred in December while driving home from waxahachie, snow was falling and the temperature was at 35 degrees and falling with ice starting to accumulate on the windshield. I engaged the defroster to clear the ice, but all of the windows fogged up so fast that I barely got pulled over to the side of the road before I couldn't see at all. It took the truck an additional 15 minutes of running to clear enough of the fog of the window for a portal to see thru to drive at all.

- Ferris, TX, USA