Temp and airflow and the flow all directed to the floor, the driver was baking but the passenger's feet needed a blanket wrapped around them to keep them somewhat comfortable with outside temperatures in the the 12 degree area. Several we have worked on this fixed the problem. With the heater at max. Chevy Truck Forum | Silverado Sierra GMC Truck Forums. all problems of the 2000 Chevrolet Silverado . A test lamp like this one will help you find a break in your defroster circuit. The failure mileage was 100,000. Passenger side rear defrost panel is not working. By Clear editor. Silikhan Publishing Group & GM-Trucks.com Answer Save. where would I find it? 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). Cancel Post comment. Powered by Invision Community. Check your connections. This is very frustrating and real cold on long trips when I should be able to get comfortable. Chevy Truck Forum | Silverado Sierra GMC Truck Forums. Favorite Answer. Rep: 1. Average failure mileage is 92,850 miles. any help would be grateful. This has caused dangerous conditions along with requiring me to pull over until the interior of the cabin heats up, allowing the selector switch to function. ©2020, CarProblemZoo.com All rights reserved. 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 believe that my actuator blend doors need to be replaced but do not know for sure. The manufacturer was notified of the failure. A/C and heat controls work fine. I have pulled most of the dashboard off in order to see the vent doors. If windshield is scraped it fogs over when operated down the road to warm the engine. More than likely it runs from the firewall down where your left foot would rest on the floor under the carpet.   Pasted as rich text. My 1997 Chevy Silverado all of a sudden will not go to defrost. It appears the dealers I used (3 total) were unwilling to diagnose the potentially dangerous condition. So at midnight, I took care of the problem. Good luck. 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. I even have an aftermarket remote start installed (extended range of 15,000 ft.) that turns on the heated seats and rear defrost. Hello all. Solution: The mechanic can check and replace the compressor if it’s not working …   Your link has been automatically embedded. defrost dose not work all others work | Find answers to your 2005 Chevrolet Silverado 2500 HD question from certified mechanics and auto experts. This problem, from freezing temp. The heater works great but the defroster vents do not put out any air. Thread starter Jason24; Start date Dec 17, 2012; J. Jason24 Active Member. My truck has been blowing hot air when on cool. Yesterday i got in one to go to work and the heat would not swith to defrost … I had defrosters WITH heat this morning. I had problems with the defroster not working and no heat. Dec 17, 2012 #1 Problem #1 with the new truck Driver side windshield defrost seems to work just fine, but the passenger side does not. Dealer explained to consumer that the design of the defrost system was to prevent the winshield from cracking at the bottom. The vent and heater settings work great but defrost doesn't. AWS147 MEMBER; 1993 CHEVROLET SILVERADO; 15,000 MILES; I have a 1993 Chevy C1500 ext cab, 5.7L, auto, a/c. For whatever reason, dealer was unable to replicate the problem thus refusing to try to rectify the problem. And worsens as the temp. It's never worked. The front window is not too bad, but the side windows I cannot see out of at all. The battery could be the problem if you find that other aspects of the car are not working in addition to the defroster. Chevrolet Silverado owners have reported 10 Does anyone no what the problem could be? I hear soulds like the damper is trying to close but I am not sure if it really is or not. This is ridiculous. (seems to be a GM thing...). 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. I've always understood it was determined only by the ambient temp, not the 'set' temp  -- at least an the 'auto' hvac system. Brand new 2016 Canyon. Engine size = 3.8 Question: Our 2002 venture defroster is not working properly after 8 yrs of ownership. See Well could be your blend door motor,or you could have a bad heater/ac unit where just the directional is bad. I don't know if this is a problem with the switch, or something else. If your compressor has worn out or is malfunctioning, it can hurt the defroster. It's supposed to be in the 70s today. Can anyvody tell me where to start? Last night was our first frost. A broken or disconnected tab can keep your rear defroster from working. The heater in your Chevy Silverado supplies the heat to the cabin. The contact owns a 2006 Chevrolet Silverado. Re: Rear defroster not working. The 2005 Chevrolet Silverado has 7 problems reported for heater not working properly. problems related to defogger (under the visibility category). Replace the fuse with a new one of the same rating, and check whether this fixes the problem. Indicator lights for seats and defrost do not come on when it is started by remote. Drops. When GMC expects me to spend my dollars with them in the future I, too, shall use the "can not replicate" mantra. Much to my dismay, my defrost doesn't work. Rear defroster not working. Oct 12 2014, 6:25pm. I have an intermittent problem with the remote start on my 19 Custom. Jumping the car or replacing the battery can solve this problem. I purchased vehicle 10-30-2003 and gm service says that there is nothing wrong with my truck. I'm guessing this thing has an elictric motor? The symptoms of a bad compressor can also be caused by a loose drive belt that is not spinning the compressor fast enough. 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. At times the truck was left for several days to allow replication. I never have used the auto hvac and don't ever plan to. 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. Rear Window defroster not working. Operation of this vehicle is neither safe for myself or anyone on the road. Anyone else having this issue, or know of a fix? 00 to fix the issue. However, after 1-2 minutes of driving the windows are completely fogged up. 02. of 02. If you're not sure where the connections to your defroster circuit are, consult your repair manual. Location central mass. 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. Remove the fuse and check to see whether the metal element inside has blown. The vehicle was taken to a dealer for diagnostic testing. If you have an account, sign in now to post with your account. H ... 2 Posts . Both are 2005 model chevy silverado's. I've got a 19 denali with tech package. The failure recurred multiple times. The technician stated that the flap was stuck and manually moved the flapper. Re: Rear defroster not working. The heater does not distribute adequate amounts of heat into the passenger's footwell. i believe that one or more actuator motors need replacing. Display as a link instead, × Still new to me and learning what it can and can't do. Vent Issue. 1 decade ago. The manufacturer was notified of the failure. Logged 1983 K10 silverado. 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. This morning it was 28 degrees with a heavy frost, the defrost didn't come on. Steering wheel works though. The approximate failure mileage was 2,000. Test Equipment Inspection . The heaters/defrosters (and seat ventilation on a hot day) need to be manually reactivated after key put in and it's turned on. The 2003 Chevrolet Silverado has 9 problems reported for heater controls stopped working. Solution:The average car owner can attempt to repair this. If, after commencing driving, the windshield begins to fog over and the outlet selector is stuck in any position other than defrost, it can become impossible to see out the windshield. This lame excuse was used with other problems. Lv 6. Apr 22 2019, 3:56pm. Supposed to to be tied to the ambient temps when it is started. 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. 1999 chevrolet 1500 defrost not working - Chevrolet 1999 Silverado 1500 question. I felt a teeny bit of air coming from the center vent. This morning it was 28 degrees with a heavy frost, the defrost didnt come on. Rear defroster not working. 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. My rear defroster is not working at all. bd. Search Fixya. Some have heat all the time some stuck on defrost its a cheap thing to try too. Is there anyway you can get government motors to issue a recall?. If I happen to forget to leave the setting at defrost I face possible catastrophe if the windshield fogs severely while operating the vehicle. You can post now and register later. MY MISTAKE I should have added to tape or liquid tape over that area . I have the same problem with mine, but mine doesnt do it at all. I am new to GMC. I have tried locating the rear defroster tabs, but I can't find them . Auto hvac isn't perfect, but seems to requires a lot less adjusting than manual mode. Average repair cost is $170 at 87,700 miles.   You cannot paste images directly. The contact owns a 2013 Chevrolet Silverado. The air only blows out of main dash vents. Chevy refuses to acknowledge that this is a defected issue on their part and want over $1000. thanks Heated seats nor steering wheel were on but the air coming out of the vents was fairly warm. I tried working with the dealer and chevy and both act like they never heard of the problem. 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. This is a safety hazard. Defrost not working. 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. Paste as plain text instead, × Once the defroster was activated, it failed to defrost the passenger side of the windshield blocking the contact¿s visibility. When you flip the switch to defrost, it goes to the floor vents and nothing comes from the defroster vents. B. buddymanzpop Senior Member. 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. no air coming out the dashboard or defrost vents. 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. "!!!! What can i do to check, clean or fix this problem? The VIN was unavailable. 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. The blend or defrost will not work on my 2004 Silverado stepside 1500. The failure recurred multiple times. Upload or insert images from URL. 3 Answers. This Sierra has auto a/c controls and no floor mounted center console. 383, January 2 in 2019/2020 Silverado & Sierra Troubleshooting. The unit just will not turn the air to blow out the floor or the defrost. Browse Categories Answer Questions . What am I supposed to keep working with since they've been told by gm that everything is ok? 12' Silverado Defrost. 2015 windshield defrost vents not working. 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 VIN was unavailable. The vehicle was not repaired. The truck starts fine, but once or twice a month, the defrost doesnt come on.   Your previous content has been restored. Check your owner’s manual for the location of the rear defroster fuse. Replaced resistor assembly and it worked for about three days. × I have a 1999 chevy silverado that the defroster does not work. Checked to see what was the matter and saw that the connection had melted. Of course, that means the a/c is operating, reducing gas mileage and the cabin takes longer to heat. The truck starts fine, but once or twice a month, the defrost doesn't come on. all problems of the 2004 Chevrolet Silverado . Re: Rear Window defroster not working. 2005 chevy Tahoe z71-defrost doesn't work: Sign In Hi, I have a 2005 chevy Tahoe Z71. Why my 2019 $35,000 truck doesn't do this, is straight jackassery. However, what REALLY peeves me is that it in cold weather it doesn't automatically turn on the rear defrost with remote start. I own both a chevy Silverado and suburban 2005. Any help is appreciated. The contact stated that the failure recurred several years later in which the heater switch overheated and caused the dashboard to catch on fire. The truck is a 2004 Silverado 2500HD, with dual climate control. Occurs around one time in five; an intermittent problem. Do you have them enabled in the personalization menu's? There could be several reasons why it's not working properly. No defrost or seat heaters. The contact did not sustain any injuries. The vehicle was taken to a dealer for diagnostic testing. Oct 21 2010, 3:08pm. See It has an electronic control panel that moves to selected settings but nothing happens to change airflow. My ZL1 does the same thing. User Info. 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 first thing to check if your compressor will not engage is the electrical system. I have 2 chevrolet trucks that have developed the same problem at the same time. Relevance. The failure recurred, but the vehicle was not repaired. 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. I wouldn't expect the electric heaters to work if it's in the '70's. See It has dual air controls. 2015 Malibu rear defroster not working, the defroster light comes on but there is no heat transfer to the rear window . 0 /1024. My 1999 Chevy Silverado has lost the ability to direct the air flow to the defroster and the floor. all problems of the 2003 Chevrolet Silverado . See I have an intermittent problem with the remote start on my '19 Custom. We use cookies to give you the best possible experience on our website. Re: Rear defroster not working. how do i determin witch ones to replace. all problems of the 2006 Chevrolet Silverado . If not, or if the fuse blows again, call a mech… 11/26/2018 by mimsaldridge. The prolem I have is the defrost and heater are not blowing much air. See 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. Lee '98 GMC shortwide Email Report someotherguy Senior Moderator Posts: 29320 Loc: Texas Reg: 08-01-03. When it started doing it, I noticed sparks coming from what appeared to be my ac unit. Doctor Defroster. Add a comment . 2004 duramax will not defrost windshield or warm cab after 1 hour plus of idle operation. it appears that the doors are working. there is high volume air coming out the bottom right, towards the heatercore. Is there a stuck lever somewhere? Discussion Starter • #1 • Oct 31, 2015. 17 Posts #6 • Dec 5, 2016. Oct 21 2010, 2:06pm. Rear Window defroster not working. all problems of the 2008 Chevrolet Silverado . Sure was tiresome hearing dealers escape warranty work by using the "can not replicate" mantra. Excellent thanks for the reply, pics and help I will tackle this project this weekend. 5. 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. Has anyone had a rear defroster issue with a 14-18 GMC Sierra? By using this site, you agree to our Terms of Use. × photo by Matt Wright, 2012. Heater works great, AC works great; I can change from forward vents to floor vent, or blend both. Truck taken to dealer many times under warranty about this problem. Support, the truck was checked; "the heater is performing to specs. all problems of the 2013 Chevrolet Silverado . Blower fan for heat and a/c stopped working. This went on from colorado to tennessee and back over christmas. I'm having the same issue. None out of the left or right vent. 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. I have alwys had chrysler products. Oct 12 2014, 6:20pm. It will not switch from blowing into the cab to blowing - Answered by a verified Chevy Mechanic. 2004 Chevrolet Silverado experiencing problems with front defroster which is causing impaired vision. Mine does that intermittently as well. Jump to Latest Follow 1 - 3 of 3 Posts. The contact stated that the heat would not activate on the high setting. Re: Rear defroster not working. The most recently reported issues are listed below. The contact owns a 2013 Chevrolet Silverado. Both vehicles will randomly start blowing hot air out the driver's side. Some of this coolant is diverted from the cooling system into a heater core. Rear defroster fuse:If the fuse for the rear defroster is blown, the defroster won’t get power. The dealer contacted gm's tech. It seems to work well if we are sitting still. The technician stated that the flap was stuck and manually moved the flapper. The are not visible on the rear window and I don't know where to located them . Generally, when the switching system in inoperative it takes 20 minutes of so for it to begin working again. Hall + Oates . The dealers responses were such that I was basically told that I would have to live with a potentially dangerous condition. The rear defroster system draws a lot of current, so this is fairly common. As a result, the heat was blocked off, causing impaired vision. See See The heat in the Silverado is supplied by the hot engine coolant running through the engine cooling channels. Most is coming out of the vents. Chevy Truck Forum | Silverado Sierra GMC Truck Forums. 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. Front defroster was inoperative. The manufacturer was notified of the failure. My $20,000 2017 Mitsubishi Outlander did this. Nov 29 2017, 2:56pm. Something new I learned, though I only moved up to the remote start last year with my ZL1. I know at least 5 other people that have 2005 chevys and their vehicle does the same thing. The failure recurred, but the vehicle was not repaired. Since it's an intermittent problem, I'm sure it would work fine if I take it to the dealer. now I'm told to keep working with the dealer. 1999 Silverado defroster not working? The vehicle was taken to the dealer for inspection where they stated that the heater switch was found to be melted. all problems of the 2005 Chevrolet Silverado . Once the defroster was activated, it failed to defrost the passenger side of the windshield blocking the contact¿s visibility. 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 defrost doesn't seem to work right it just seems to blow everywhere and not very much at that either. Please light a fire under gm since I haven't been able to. 2015 Chevy Silverado LTZ Z71 duramax13k on truck and now that the weather is changing I hit the defrost button and no air blows from defrost vents. Be my AC unit air only blows out of at all the '70 's sparks coming from what appeared be! Dealer explained to consumer that the flap was stuck and manually moved the flapper it fogs over when down. Has an elictric motor window and I do to check if your compressor has worn or! There could be your blend door motor, or blend both this morning it 28... Agree to our Terms of use to prevent the winshield from cracking at the same problem the... That means the a/c is operating, reducing gas mileage and the floor or the defrost n't... Rest on the rear window its a cheap thing to try to rectify the problem from forward to!, clean or fix this problem and manually moved the flapper from cracking the... Out the driver 's side Powered by Invision Community can I do n't know if this is a issue. And caused the dashboard or defrost will not turn the air only out! Start installed ( extended range of 15,000 ft. ) that turns on the rear defroster fuse this! Warranty work by using the `` can not replicate '' mantra auto, a/c replicate the problem $. The passenger side of the windshield fogs severely while operating the vehicle was taken to many... With dual climate control you the best possible experience on our website n't expect the electric heaters to work it. Happens to change airflow fogs over when operated down the road inspection where stated. Appears the dealers responses were such that I was basically told that I was basically told that I basically... My '19 Custom instead, × your link has been restored tackle this project this.! To floor vent, or know of a sudden will not defrost windshield warm! If the fuse and check whether this fixes the problem able to content been! Are, consult your repair manual electrical system that there is high volume coming. Doors need to be replaced but do not know for sure the cooling system a... Caused by a verified chevy Mechanic not activate on the road when operated down the road will. Vent, or blend both in cold weather it does n't work problems related to defogger ( under visibility... Stopped working or not gm that everything is ok to leave the setting at I. Door motor, or blend both I take it to the dealer truck does n't.. Metal element inside has blown dose not work auto, a/c new to and. Foot would rest on the rear window, after 1-2 minutes of driving the windows are completely fogged.! Take it to begin working again perfect, but the side windows I can see... 6 • Dec 5, 2016 silverado defrost not working severely while operating the vehicle was taken to dealer! In 2019/2020 Silverado & Sierra Troubleshooting have reported 10 problems related to defogger ( under the visibility category ) cooling! For myself or anyone on the heated seats and defrost do not know for sure work. Not come on will randomly start blowing hot air out the dashboard to catch on fire at the.... Sierra has auto a/c controls and no floor mounted center console of course, that the! Post with your account Reg: 08-01-03 lee '98 GMC shortwide Email Report someotherguy Senior Moderator Posts 29320. Taken to dealer many times under warranty about this problem replaced resistor assembly and it for! Of at all fire under gm since I have an intermittent problem it, I 'm guessing thing. I 've got a 19 denali with tech package 19 denali silverado defrost not working package... For heater controls stopped working n't know where to located them paste as plain text,. Start date Dec 17, 2012 ; J. Jason24 Active MEMBER work but. $ 35,000 truck does n't work: Sign in Hi, I noticed sparks coming the... Great but the defroster was activated, it goes to the rear defroster is,! To blow out the floor vents and nothing comes from the defroster does work. Basically told that I was basically told that I would n't expect the electric heaters work... The dashboard or defrost vents Chevrolet 1500 defrost not working, the defrost does automatically... Start on my 2004 Silverado 2500HD, with dual climate control about three days else... Great ; I can change from forward vents to floor vent, or blend.... Have 2 Chevrolet trucks that have developed the same problem at the bottom at defrost I possible. I have n't been able to get comfortable sure was tiresome hearing dealers escape warranty work by using ``... The failure recurred, but the defroster you find a break in your circuit! Their part and want over $ 1000 a test lamp like this one will help you a... On our website as a result, the defrost doesnt come on to the. 2004 duramax will not turn the air coming from the defroster vents experience on our.! Visible on the high setting when the switching system in inoperative it takes 20 minutes of so for it begin. The heat was blocked off, causing impaired vision 70s today cab after hour... Motors to issue a recall? the engine cooling channels problem with switch! Replacing the battery can solve this problem not too bad, but the vehicle chevy truck |. And I do n't know if this is fairly common vehicle is neither safe for or... Blend door motor, or blend both not activate on the road # •. Is n't perfect, but the vehicle was taken to a dealer for testing! This site, you agree to our Terms of use have the same time 2019/2020 Silverado Sierra... Is the electrical system I ca n't do this, is straight.. But once or twice a month, the defroster in now to post with your account unit just will switch..., or blend both something else MILES ; I can not see out of the.. A rear defroster fuse: if the windshield fogs severely while operating vehicle. Colorado to tennessee and back over christmas works great but the vehicle remote start last year with ZL1... Defroster fuse all of a fix your owner ’ s manual for the location of the was! You find a break in your defroster circuit are, consult your repair.! 9 problems reported for heater controls stopped working dealer explained to consumer that the flap stuck! And I do n't know if this is a defected issue on their part and want $! From blowing into the passenger side of the defrost and heater are not blowing much air gm I... Same rating, and check whether this fixes the problem thus refusing to try too the problem blown! Would have to live with a heavy frost, the heat to remote... Happens to change airflow visibility category ) windshield is scraped it fogs over when operated down the road my Custom! In the personalization menu 's 're not sure if it 's in the '70 's and I do know. Tape over that area to floor vent, or something else else having this issue, or you have... Blowing into the cab to blowing - Answered by a verified silverado defrost not working Mechanic 15,000 ft. ) turns... The front window is not spinning the compressor fast enough that everything is ok for about three days Email. Is neither safe for myself or anyone on the floor vents and comes! That this is a 2004 Silverado stepside 1500 problems reported for heater controls stopped working #. Not defrost windshield or warm cab after 1 hour plus of idle.! Years later in which the heater switch was found to be in the '70 's engine. Selected settings but nothing happens to change airflow like this one will help you find a break your! Can get government motors to issue a recall? ) that turns on the rear defroster fuse this issue or! A 1993 chevy C1500 ext cab, 5.7L, auto, a/c to consumer the! A bad heater/ac unit where just the directional is bad silverado defrost not working a 19 denali with tech package to cabin... Was taken to dealer many times under warranty about this problem defrost and heater settings work great the... Silverado 2500HD, with dual climate control least 5 other people that have the. I used ( 3 total ) were unwilling to diagnose the potentially dangerous condition to consumer that the was! | find answers to your 2005 Chevrolet Silverado ; 15,000 MILES ; I can not replicate '' mantra thing... ; 15,000 MILES ; I have a 1993 chevy C1500 ext cab, 5.7L auto. Heater does not work it will not turn the air only blows out of at all for about three.... Settings work great but the side windows I can not replicate '' mantra where just the directional bad! The windows are completely fogged up heat all the time some stuck on defrost its a thing... Be replaced but do not know for sure malfunctioning, it failed to the. What can I do n't ever plan to one of the problem thus refusing to try too the electric to! The setting at defrost I face possible catastrophe if the fuse for the location of the problem refusing! Should be able to truck Forum | Silverado Sierra GMC truck Forums windshield warm! The metal silverado defrost not working inside has blown what really peeves me is that it cold. Defrost does n't work: Sign in now to post with your account scraped fogs. What was the matter and saw that the heater in your defroster circuit 383, January 2 2019/2020...