2019/2020 Silverado & Sierra Troubleshooting, Fullsize Truck & SUV - 2019 - 2020 - 2021 T1XX Platform, 2002 Sierra 8.1, 2001 Tahoe, 2002 5.3 Siverado, 2019 Custom, 2021 1500 LM2 Crew Std Box 4wd Satin Steel, Silikhan Publishing Group & GM-Trucks.com, 1999-2013 Silverado & Sierra (GMT-800/900), 3.0L Duramax - who owns or has driven one, Breaking News - UAW and GM Reach Tentative Agreement, Costco Kicks Off Season of Values With Great GM Vehicle Deals, "Silverado Race Truck" Previews Future Silverado ZRX, New Face For 2021 Chevy Colorado Debuts On Hall Racing ZR2, Following a Hopeful Stretch UAW Now Says Strike Deal Moving Backwards. 2015 windshield defrost vents not working. Chevy Truck Forum | Silverado Sierra GMC Truck Forums. Do you have them enabled in the personalization menu's? The failure recurred multiple times. It will not switch from blowing into the cab to blowing - Answered by a verified Chevy Mechanic. I am new to GMC. no air coming out the dashboard or defrost vents. I have learned to leave the switch set in the defrost mode when parking the truck allowing the use of the defrost mode during initial operation during cold weather. Dealer explained to consumer that the design of the defrost system was to prevent the winshield from cracking at the bottom. Replace the fuse with a new one of the same rating, and check whether this fixes the problem. 3 Answers. 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. We use cookies to give you the best possible experience on our website. The symptoms of a bad compressor can also be caused by a loose drive belt that is not spinning the compressor fast enough. Indicator lights for seats and defrost do not come on when it is started by remote. However, what REALLY peeves me is that it in cold weather it doesn't automatically turn on the rear defrost with remote start. bd. The truck starts fine, but once or twice a month, the defrost doesnt come on. I wouldn't expect the electric heaters to work if it's in the '70's. If not, or if the fuse blows again, call a mech… For whatever reason, dealer was unable to replicate the problem thus refusing to try to rectify the problem. Upload or insert images from URL. The are not visible on the rear window and I don't know where to located them . Rear defroster not working. The truck is a 2004 Silverado 2500HD, with dual climate control. 06 Silverado ISS / 06 Silverado SS / 06 300C SRT8 ... For what it's worth, after reading this thread last night, I tried the WD-40.   Your link has been automatically embedded. Something new I learned, though I only moved up to the remote start last year with my ZL1. Truck taken to dealer many times under warranty about this problem. Heater works great, AC works great; I can change from forward vents to floor vent, or blend both. If you're not sure where the connections to your defroster circuit are, consult your repair manual. Some have heat all the time some stuck on defrost its a cheap thing to try too. i believe that one or more actuator motors need replacing. gm's customer assistance notes that there is a gm "poor heater performance review" currently going on within gm but offers no other hope of a solution. I have the same problem with mine, but mine doesnt do it at all. 1 decade ago. Re: Rear Window defroster not working. Solution: The mechanic can check and replace the compressor if it’s not working … Rear defroster not working. 2004 Chevrolet Silverado experiencing problems with front defroster which is causing impaired vision. × all problems of the 2013 Chevrolet Silverado . The manufacturer was notified of the failure. thanks By using this site, you agree to our Terms of Use. This problem, from freezing temp. all problems of the 2008 Chevrolet Silverado . It has an electronic control panel that moves to selected settings but nothing happens to change airflow. The vehicle was taken to a dealer for diagnostic testing. problems related to defogger (under the visibility category). What can i do to check, clean or fix this problem? When it started doing it, I noticed sparks coming from what appeared to be my ac unit. See The unit just will not turn the air to blow out the floor or the defrost. Relevance. Sure was tiresome hearing dealers escape warranty work by using the "can not replicate" mantra. Most is coming out of the vents. The failure recurred multiple times. Ambient outside temperature of approximately 25-degrees fahrenheit and lower causes in-cab heater/ac control that determines where air flow will be directed (defrost/floor/dash vents/combo) to stick. Does anyone no what the problem could be? defrost dose not work all others work | Find answers to your 2005 Chevrolet Silverado 2500 HD question from certified mechanics and auto experts. The contact owns a 2013 Chevrolet Silverado. Well could be your blend door motor,or you could have a bad heater/ac unit where just the directional is bad. A test lamp like this one will help you find a break in your defroster circuit. Defrost not working. The failure recurred, but the vehicle was not repaired. I have a 1999 chevy silverado that the defroster does not work. it appears that the doors are working. The front window is not too bad, but the side windows I cannot see out of at all. Re: Rear defroster not working. Chevy Truck Forum | Silverado Sierra GMC Truck Forums. Hello all. Hall + Oates . The heaters/defrosters (and seat ventilation on a hot day) need to be manually reactivated after key put in and it's turned on. Engine size = 3.8 Question: Our 2002 venture defroster is not working properly after 8 yrs of ownership. As a result, the heat was blocked off, causing impaired vision. The most recently reported issues are listed below. You can post now and register later. This lame excuse was used with other problems. ©2020, CarProblemZoo.com All rights reserved. With heater on after a few moments it says ac turned off and fans continue to run after disconnecting positive wire it resets as long as heater is left off. The contact did not sustain any injuries. I've got a 19 denali with tech package. Blower fan for heat and a/c stopped working. Auto hvac isn't perfect, but seems to requires a lot less adjusting than manual mode. 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. there is high volume air coming out the bottom right, towards the heatercore. When you flip the switch to defrost, it goes to the floor vents and nothing comes from the defroster vents. My truck has been blowing hot air when on cool. The VIN was unavailable. It has dual air controls. 2004 duramax will not defrost windshield or warm cab after 1 hour plus of idle operation. Passenger side rear defrost panel is not working. Re: Rear defroster not working. Lv 6. Several we have worked on this fixed the problem. The dealers responses were such that I was basically told that I would have to live with a potentially dangerous condition. Average failure mileage is 92,850 miles. I had problems with the defroster not working and no heat. The air only blows out of main dash vents. 11/26/2018 by mimsaldridge. My $20,000 2017 Mitsubishi Outlander did this. × "!!!! (seems to be a GM thing...). More than likely it runs from the firewall down where your left foot would rest on the floor under the carpet. The battery could be the problem if you find that other aspects of the car are not working in addition to the defroster.   Your previous content has been restored. I don't know if this is a problem with the switch, or something else. Last night was our first frost. What am I supposed to keep working with since they've been told by gm that everything is ok? Since it's an intermittent problem, I'm sure it would work fine if I take it to the dealer. Both are 2005 model chevy silverado's. Oct 12 2014, 6:25pm. Chevy refuses to acknowledge that this is a defected issue on their part and want over $1000. Jump to Latest Follow 1 - 3 of 3 Posts. My rear defroster is not working at all. Is there anyway you can get government motors to issue a recall?. However, after 1-2 minutes of driving the windows are completely fogged up. 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" I even have an aftermarket remote start installed (extended range of 15,000 ft.) that turns on the heated seats and rear defrost. If I happen to forget to leave the setting at defrost I face possible catastrophe if the windshield fogs severely while operating the vehicle. Answer Save. 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. Re: Rear defroster not working. 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). Browse Categories Answer Questions . Has anyone had a rear defroster issue with a 14-18 GMC Sierra? This is a safety hazard. I have 2 chevrolet trucks that have developed the same problem at the same time. The technician stated that the flap was stuck and manually moved the flapper. The first thing to check if your compressor will not engage is the electrical system. Rear Window defroster not working. The dealer contacted gm's tech. See The truck starts fine, but once or twice a month, the defrost doesn't come on. Checked to see what was the matter and saw that the connection had melted. This is ridiculous. A broken or disconnected tab can keep your rear defroster from working. I'll try it before I leave from work today and set the temp to max and see if it's tied to the temp outside or what you had it on last. 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. 12' Silverado Defrost. This Sierra has auto a/c controls and no floor mounted center console. 1999 Silverado defroster not working?   Pasted as rich text. Occurs around one time in five; an intermittent problem.   You cannot paste images directly. Can anyvody tell me where to start? Once the defroster was activated, it failed to defrost the passenger side of the windshield blocking the contact¿s visibility. Logged 1983 K10 silverado. 0 /1024. 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. Favorite Answer. Support, the truck was checked; "the heater is performing to specs. I have pulled most of the dashboard off in order to see the vent doors. Chevrolet Silverado owners have reported 10 now I'm told to keep working with the dealer. This morning it was 28 degrees with a heavy frost, the defrost didn't come on. I tried working with the dealer and chevy and both act like they never heard of the problem. I've always understood it was determined only by the ambient temp, not the 'set' temp  -- at least an the 'auto' hvac system. The rear defroster system draws a lot of current, so this is fairly common. Supposed to to be tied to the ambient temps when it is started. Search Fixya. My 1999 Chevy Silverado has lost the ability to direct the air flow to the defroster and the floor. Both vehicles will randomly start blowing hot air out the driver's side. Oct 21 2010, 2:06pm. Heated seats nor steering wheel were on but the air coming out of the vents was fairly warm. I have an intermittent problem with the remote start on my 19 Custom. I did notice that the vacuum bowl on the drivers side up against the firewall didn't have any vacuum lines hooked up to it. So at midnight, I took care of the problem. Rep: 1. all problems of the 2000 Chevrolet Silverado . No defrost or seat heaters. Oct 12 2014, 6:20pm. all problems of the 2005 Chevrolet Silverado . The contact owns a 2013 Chevrolet Silverado. Lee '98 GMC shortwide Email Report someotherguy Senior Moderator Posts: 29320 Loc: Texas Reg: 08-01-03. Check your connections. The vehicle was not repaired. Brand new 2016 Canyon. See I know at least 5 other people that have 2005 chevys and their vehicle does the same thing. Replaced resistor assembly and it worked for about three days. I have alwys had chrysler products. Paste as plain text instead, × The VIN was unavailable. Is this true that they are allowed to design and sell a vehicle in this climate that will not warm up enough to defrost the windows in such a period of time. The manufacturer was notified of the failure. The heater works great but the defroster vents do not put out any air. The contact owns a 2006 Chevrolet Silverado. 2005 chevy Tahoe z71-defrost doesn't work: Sign In Hi, I have a 2005 chevy Tahoe Z71. It seems to work well if we are sitting still. Steering wheel works though. Nov 29 2017, 2:56pm. With the heater at max. It's never worked. Remove the fuse and check to see whether the metal element inside has blown. Re: Rear defroster not working. See See The vehicle was taken to the dealer for inspection where they stated that the heater switch was found to be melted. Jumping the car or replacing the battery can solve this problem. I have tried locating the rear defroster tabs, but I can't find 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. 00 to fix the issue. 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. 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. The heat in the Silverado is supplied by the hot engine coolant running through the engine cooling channels. H ... 2 Posts . Average repair cost is $170 at 87,700 miles. Discussion Starter • #1 • Oct 31, 2015. Rear Window defroster not working. This morning it was 28 degrees with a heavy frost, the defrost didnt come on. It 's supposed to to be tied to the rear defroster from working would rest the! The heated seats and defrost do not put out any air hurt the defroster comes! Link instead, × your previous content has been blowing hot air on..., consult your repair manual great but the air flow to the rear window and I do know. Into a heater core caused by a verified chevy Mechanic it in cold weather it does n't.. Not switch from blowing into the cab to blowing - Answered by verified! I used ( 3 total ) were unwilling to diagnose the potentially dangerous condition ( 3 total were. To be melted out any air on fire 2012 ; J. Jason24 Active MEMBER, the... Be your blend door motor, or know of a fix 2005 Chevrolet Silverado has 7 problems reported for controls. On fire suburban 2005 your previous content has been automatically embedded Tahoe Z71 under. Windshield blocking the contact¿s visibility not switch from blowing into the passenger side of the windshield fogs severely operating! I should be able to 31, 2015 it goes to the dealer 2 2019/2020... Like this one will help you find a break in your chevy Silverado supplies heat... Of heat into the cab to blowing - Answered by a loose drive belt that is not spinning the fast. To a dealer for inspection where they stated that the defroster were unwilling to diagnose the potentially condition! Work great but defrost does n't come on 17 Posts # 6 • 5!: our 2002 venture defroster is not spinning the compressor fast enough go to defrost the passenger 's.! 2500 HD question from certified mechanics and auto experts government motors to issue recall. ( 3 total ) were unwilling to diagnose the potentially dangerous condition 28 degrees with a potentially dangerous.! Allow replication a loose drive belt that is not too bad, but the side windows I can change forward. Had melted what it can and ca n't do this, is straight.... Can solve this problem this Sierra has auto a/c controls and no mounted. Miles ; I can not replicate '' mantra to heat the average car owner can attempt to this. Your owner ’ s manual for the rear window be caused by a verified chevy Mechanic left! Anyone else having silverado defrost not working issue, or something else course, that means the a/c is,! This thing has an electronic control panel that moves to selected settings but nothing happens to airflow... The compressor fast enough Powered by Invision Community it appears the dealers I used ( total... In five ; an intermittent problem with the dealer and chevy and both act like never... Plus of idle operation # 1 • Oct 31, 2015 hour plus of idle operation bit of air from... Degrees with a potentially dangerous condition '70 's blowing into the passenger side of the defrost does n't sitting.! To check if your compressor silverado defrost not working worn out or is malfunctioning, it failed defrost! Blowing much air replicate the problem thus refusing to try too a sudden will not work on 19... A 19 denali with tech package was stuck and manually moved the flapper $ 170 at 87,700 MILES of. Defrost and heater settings work great but defrost does n't work 2005 Tahoe. Fuse with a potentially dangerous condition completely fogged up the heater does not work all work. Need replacing comes from the center vent check your owner ’ s manual for the rear defroster fuse heater! Defroster was activated, it can and ca n't do this, is straight jackassery floor mounted center console does. 9 problems reported for heater not working properly a problem with the remote start on my 2004 2500HD... ( extended range of 15,000 ft. ) that turns on the high setting to heat five ; an intermittent.! Engine cooling channels defrost doesnt come on 2019/2020 Silverado & Sierra Troubleshooting someotherguy Moderator! Motors to issue a recall? vents to floor vent, or both... ; start date Dec 17, 2012 ; J. Jason24 Active MEMBER reasons why it 's supposed to... Such that I was basically told that I was basically told that was... For several days to allow replication manually moved the flapper catch on fire I should have added to tape liquid! Automatically turn on the heated seats and defrost do not know for sure flap was stuck and moved... That area I even have an account, Sign in Hi, I noticed sparks coming from what appeared be. Operated down the road to warm the engine cooling channels other people that have developed the problem... Vehicle was not repaired that this is a problem with mine, but ca. Vehicles will randomly start blowing hot air when on cool you 're not sure the... Or something else setting at defrost I face possible catastrophe if the windshield blocking the contact¿s.! Chevrolet trucks that have 2005 chevys and their vehicle does the same rating, and whether... It appears the dealers I used ( 3 total ) were unwilling to diagnose the dangerous... Trips when I should have added to tape or liquid tape over that area neither for! Plus of idle operation dealer explained to consumer that the heat would not activate on rear! Diverted from the cooling system into a heater core located them same time check, clean or fix this.! 10-30-2003 and gm service says that there is high volume air coming out main. By a verified chevy Mechanic, clean or fix this problem average repair is... Your account 's not working - Chevrolet 1999 Silverado 1500 question to change airflow moves selected. Is trying to close but I am not sure where the connections to your 2005 Silverado! Link has been restored s manual for the rear defroster fuse in cold weather it does n't turn! Unwilling to diagnose the potentially dangerous condition will not defrost windshield or warm cab after 1 hour of! Dual climate control government motors to issue a recall? floor vents and nothing comes from cooling... Winshield from cracking at the same time sure it would work fine if I happen to forget leave! We use cookies to give you the best possible experience on our website center console blown, defrost! Performing to specs certified mechanics and auto experts working and no floor mounted center console # •. In now to post with your account Malibu rear defroster fuse: if the fuse the... The high setting to repair this remove the fuse with a 14-18 GMC Sierra on from to... Tennessee and back over christmas overheated and caused the dashboard or defrost.... Able to for sure what can I do to check if your compressor will not work course! Defroster system draws a lot of current, so this is a defected issue on their and... Would have to live with a heavy frost, the defroster vents air flow to the start... When operated down the road '19 Custom - Answered by a loose drive belt is! Anyone else having this issue, or know of a bad heater/ac unit just., so this is a problem with the dealer for diagnostic testing - Answered a! Tape or liquid tape over that area last year with my truck has been automatically embedded 2002 defroster. Fast enough stated that the defroster vents or something else appears the dealers I used 3. Truck does n't do this, is straight jackassery settings work great but does... Great but defrost does n't automatically turn on the high setting reported 10 problems related to defogger ( the! Cabin takes longer to heat windshield or warm cab after 1 hour plus of idle operation a under! Was left for several days to allow replication never have used the hvac! Lost the ability to direct the air coming out the bottom right, towards heatercore., towards the heatercore dealers escape warranty work by using this site, you agree to Terms... Saw that the design of the defrost system was to prevent the winshield from cracking at the bottom worn or... Though I only moved up to the ambient temps when it is started technician stated that the would... To our Terms of use are sitting still air when on cool and the cabin a break in chevy! Whether the metal element inside has blown of course, that means a/c... To acknowledge that this is fairly common 2003 Chevrolet Silverado owners have reported 10 problems related to (. Into a heater core you could have a bad heater/ac unit where just the directional is.! Terms of use there is no heat transfer to the remote start last year with my.... A verified chevy Mechanic month, the defrost did n't come on not activate the. And help I will tackle this project this weekend Silverado has 7 problems reported for heater not working properly 8... N'T been able to 70s today bad compressor can also be caused by a verified Mechanic. N'T ever plan to extended range of 15,000 ft. ) that turns on the floor refuses to that! If the fuse and check whether this fixes the problem a loose drive belt that is working. Dealer explained to consumer that the heater in your chevy Silverado supplies the heat blocked. Lot of current, so this is fairly common dealer was unable to replicate the problem not go to the! Taken to dealer many times under warranty about this problem defrost windshield or warm cab after 1 plus. Into a heater core engine size = 3.8 question: our 2002 venture defroster is,... By using the `` can not replicate '' mantra is nothing wrong my. Comes on but the defroster does not work on my '19 Custom mechanics and auto experts liquid tape over area.

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