Does anyone no what the problem could be? now I'm told to keep working with the dealer. 02. of 02. By continuing to use this site you consent to the use of cookies on your device as described in our cookie policy unless you have disabled them. Lv 6. Steering wheel works though. We use cookies to give you the best possible experience on our website. The prolem I have is the defrost and heater are not blowing much air. I even have an aftermarket remote start installed (extended range of 15,000 ft.) that turns on the heated seats and rear defrost. My $20,000 2017 Mitsubishi Outlander did this. 2015 windshield defrost vents not working. Display as a link instead, × The front window is not too bad, but the side windows I cannot see out of at all. Of course the customer brought the truck in, knowing that I had to lay under the driver’s … Continue reading "2005 GMC Sierra, Air Blows Only From Defroster Vents" The heater works great but the defroster vents do not put out any air. If windshield is scraped it fogs over when operated down the road to warm the engine. I am new to GMC. Rear Window defroster not working. Cancel Post comment. The failure mileage was 100,000. I had defrosters WITH heat this morning. Test Equipment Inspection . Heated seats nor steering wheel were on but the air coming out of the vents was fairly warm. no air coming out the dashboard or defrost vents. I wouldn't expect the electric heaters to work if it's in the '70's. The manufacturer was notified of the failure. What am I supposed to keep working with since they've been told by gm that everything is ok? I have an intermittent problem with the remote start on my 19 Custom. all problems of the 2008 Chevrolet Silverado . Any help is appreciated. Jumping the car or replacing the battery can solve this problem. So at midnight, I took care of the problem. A broken or disconnected tab can keep your rear defroster from working. This is ridiculous. Jump to Latest Follow 1 - 3 of 3 Posts. Replace the fuse with a new one of the same rating, and check whether this fixes the problem. Defrost not working. all problems of the 2004 Chevrolet Silverado . The vehicle was taken to the dealer for inspection where they stated that the heater switch was found to be melted. I'm guessing this thing has an elictric motor? 2004 Chevrolet Silverado experiencing problems with front defroster which is causing impaired vision. 1 decade ago. At times the truck was left for several days to allow replication. The symptoms of a bad compressor can also be caused by a loose drive belt that is not spinning the compressor fast enough. Answer Save. Rear defroster fuse:If the fuse for the rear defroster is blown, the defroster won’t get power. This is a safety hazard. bd. See The technician stated that the flap was stuck and manually moved the flapper. Both vehicles will randomly start blowing hot air out the driver's side. The manufacturer was notified of the failure. all problems of the 2006 Chevrolet Silverado . Occurs around one time in five; an intermittent problem. Drops. You can post now and register later. More than likely it runs from the firewall down where your left foot would rest on the floor under the carpet. Solution: The mechanic can check and replace the compressor if it’s not working … Yesterday i got in one to go to work and the heat would not swith to defrost … Both are 2005 model chevy silverado's. Blower fan for heat and a/c stopped working. Check your owner’s manual for the location of the rear defroster fuse. The truck starts fine, but once or twice a month, the defrost doesnt come on. 00 to fix the issue. I have the same problem with mine, but mine doesnt do it at all. Silikhan Publishing Group & GM-Trucks.com This 2005 GMC Sierra came in with the complaint that the air will only flow from the defroster vents, regardless of where it is commanded to. The contact stated that the heat would not activate on the high setting. Hall + Oates . And worsens as the temp. It's never worked. With the heater at max. Clear editor. Check the fusebox first, which is located under the hood near the driver’s side fender on 1999 through 2010 Silverado model years and on the left side of the instrument panel on older models (refer to your owner's manual). The failure recurred, but the vehicle was not repaired. The vehicle was not repaired. My 1999 Chevy Silverado has lost the ability to direct the air flow to the defroster and the floor. I have tried locating the rear defroster tabs, but I can't find them . i believe that one or more actuator motors need replacing. I've got a 19 denali with tech package. The contact stated that the failure recurred several years later in which the heater switch overheated and caused the dashboard to catch on fire. Since it's an intermittent problem, I'm sure it would work fine if I take it to the dealer. The heater does not distribute adequate amounts of heat into the passenger's footwell. 11/26/2018 by mimsaldridge. The contact owns a 2013 Chevrolet Silverado. Paste as plain text instead, × The vehicle was taken to a dealer for diagnostic testing. problems related to defogger (under the visibility category).   You cannot paste images directly. Apr 22 2019, 3:56pm. The first thing to check if your compressor will not engage is the electrical system. This problem, from freezing temp. I believe that my actuator blend doors need to be replaced but do not know for sure.   Your previous content has been restored. 383, January 2 in 2019/2020 Silverado & Sierra Troubleshooting. Some have heat all the time some stuck on defrost its a cheap thing to try too. Discussion Starter • #1 • Oct 31, 2015. Brand new 2016 Canyon. Nov 29 2017, 2:56pm. The failure recurred, but the vehicle was not repaired. any help would be grateful. Supposed to to be tied to the ambient temps when it is started. Oct 12 2014, 6:20pm. Air blows out of both vents, but the passenger side seems to blow only cold or lukewarm at best when cranked all the way up. all problems of the 2000 Chevrolet Silverado . Why my 2019 $35,000 truck doesn't do this, is straight jackassery. Oct 21 2010, 2:06pm. The are not visible on the rear window and I don't know where to located them . The manual reactivation isn't great but I guess it's a safety concern much like how the truck rear outlet turns off after 10 minutes and the truck turns off after idling for 30 or 45 minutes. 1999 Silverado defroster not working? all problems of the 2003 Chevrolet Silverado . See Re: Rear defroster not working. Anyone else having this issue, or know of a fix? Re: Rear defroster not working. I have pulled most of the dashboard off in order to see the vent doors. 17 Posts #6 • Dec 5, 2016. Checked to see what was the matter and saw that the connection had melted. thanks By Has anyone had a rear defroster issue with a 14-18 GMC Sierra? (seems to be a GM thing...). Of course, that means the a/c is operating, reducing gas mileage and the cabin takes longer to heat. My 19 Denali with the ultimate package turns on heated seats, heated steering wheel, rear defrost and heater defrost on full blast with the factory remote start. Several we have worked on this fixed the problem. When you push the button to switch from the dash or floor vent to the defrost, it stops blowing out all vents and nothing comes out the defrost. However, what REALLY peeves me is that it in cold weather it doesn't automatically turn on the rear defrost with remote start. B. buddymanzpop Senior Member. The unit just will not turn the air to blow out the floor or the defrost. Rear Window defroster not working. I purchased vehicle 10-30-2003 and gm service says that there is nothing wrong with my truck. It will not switch from blowing into the cab to blowing - Answered by a verified Chevy Mechanic. Re: Rear defroster not working. all problems of the 2013 Chevrolet Silverado, all problems of the 2003 Chevrolet Silverado, all problems of the 2006 Chevrolet Silverado, all problems of the 2008 Chevrolet Silverado, all problems of the 2005 Chevrolet Silverado, all problems of the 2004 Chevrolet Silverado, all problems of the 2000 Chevrolet Silverado. The battery could be the problem if you find that other aspects of the car are not working in addition to the defroster. Well could be your blend door motor,or you could have a bad heater/ac unit where just the directional is bad. Vent Issue. Likely your battery will only need a jump if this is an isolated issue, but if the problem persists and your car is relatively old, a battery replacement might be necessary. on mine, rear defrost usually comes on, heated steering wheel comes on, but heated seats do not (ventilated seats wouldn't come on in summer either with remote start)... currently at the dealer for recalls and a loose shifter... having them look at the heated seats not enabling while it's there... i'll try and remember to post back if they figure it out. From buying research to owner support, join 1.5 MILLION GM Truck Enthusiasts every month who use GM-Trucks.com as a daily part of their ownership experience. Some of this coolant is diverted from the cooling system into a heater core. Rep: 1. The vehicle was taken to a dealer for diagnostic testing. My ZL1 does the same thing. The heater in my 1990 Silverado Chevy truck works great and blows hot air out of all the vents, but will not blow any air out of the defrost. Auto hvac isn't perfect, but seems to requires a lot less adjusting than manual mode. I have a 1999 chevy silverado that the defroster does not work. I've always understood it was determined only by the ambient temp, not the 'set' temp  -- at least an the 'auto' hvac system. What can i do to check, clean or fix this problem? It's supposed to be in the 70s today. The rear defroster system draws a lot of current, so this is fairly common. Favorite Answer. Relevance. Hello all. In 20 seconds you can become part of the worlds largest and oldest community discussing General Motors, Chevrolet and GMC branded pickups, crossovers, and SUVs. The VIN was unavailable. photo by Matt Wright, 2012. It has an electronic control panel that moves to selected settings but nothing happens to change airflow. 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