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Chevy Silverado and GMC Sierra Electrical and Computer Questions

769 messages,  Last post on Jun 10, 2013 at 1:50 PM

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What is this discussion about? Chevrolet Silverado 1500, Chevrolet Silverado 2500, Chevrolet Silverado 3500, GMC Sierra 1500, GMC Sierra 2500, GMC Sierra 3500, Truck

    
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Messages Page 77 of 77

#760 of 769 Re: wiring harness fire [kimalberta] by westminsterfly

Mar 04, 2013 (3:01 pm)

Replying to: kimalberta (Mar 03, 2013 10:59 am)
Hey there,
 
I'm not sure if it is the same thing but i had my Chevy HHR catch on fire due to a short in the electrical system in the car. I was in the car and the whole front dashboard was melted. Needless to say the car was totaled about ten months old and 4,500 miles on it. Chevy refused to comment to me or help out on the car even though they were the ones who determined they were the cause. Gotta love fortune 500 companies in america if i were you sell the truck ASAP before it traps you inside in fire.

#761 of 769 Re: wiring harness fire [kimalberta] by barnowl3

Mar 05, 2013 (6:18 am)

Replying to: kimalberta (Mar 03, 2013 10:59 am)
This is going back a ways, but just in case it helps. My 03 Sierra , had some high/low voltage charging issues while still under warranty. First they replaced the alternator. Soon afterwards the voltage went wild, swinging back and forth between like 10 volts to 19 volts. Got it into the dealer on time before anything blew and they said there were issues with that part of the wiring harness. The way my voltage was swinging, I could have easily seen that overload the wiring, blowing filaments, etc. Replacing it did fix that problem, though I did go through another alternator about 3yrs later under 60,000 miles.
 
Is GM covering the damages under warranty? It would be good to get a sound explanation as to the cause, so the new harness does not have the same problem. I had several other parts that failed under warranty repeatedly, leading to me to believe there was a design flaw that never was corrected. That becomes a real problem for reliability, but fires are in a different category. If you do not get a clear answer, consider reporting it to the NHTSA, as this is what many had to to do with early rotting brake lines in '03 and '04, causing sudden loss of brakes in 4 yr old trucks.

#762 of 769 Re: wiring harness fire [westminsterfly] by gmcustsvc

Mar 05, 2013 (7:32 am)

Replying to: westminsterfly (Mar 04, 2013 3:01 pm)
westminsterfly,
Did you ever have any sort of file opened with us on this incident? Please let me know if we can check into anything further.
Sarah, GM Customer Service

#763 of 769 Re: Body control module problem 2007 gmc sierra [hullabaloofarm] by ryan2274

Mar 11, 2013 (10:05 am)

Replying to: hullabaloofarm (Aug 30, 2010 4:14 pm)
I'm dealing with the same problem. I have a 2007 1/2 ton GMC Sierra w/the VortecMax(6.0). Started having minor issues just like yours about a year ago but truck always restarted. Went to a local Chevy dealer and they said it was a ground. Truck ran fine for a while then slowly started doing the same thing until truck wouldn't start. Turn the key and lights(interior and exterior), radio, windows and locks, fuel pump, and the lights where the gauges are(DIC) would all work. I could also shift into gear. Unfortunetly the none of the gauges(fuel, oil, temp etc.) would not work and could not start the truck. Bought a new battery, still nothing. Had a local mechanic(non dealer garage) check every fuse, found nothing. After 3 days and him arguing with the Chevy dealership, he traced the problem to be in the BCM. So with the new battery installed he took his personal computer and cleared the codes. Then he went through a BCM restart. And that consist of turning key on waiting 14 minutes, taking key out(very important, take key out). He got this info from a friend in Texas, and i may not have all the steps correct. I will get back to you on this. Did this process 3 times and truck has run perfect every since. Truck will run normal until the battery runs down(which I know eventually will in time) or I have to disconnect a the battery cables(which I know I will at some point in the future). Long story short, truck will run as intended until one of the two happens. This is a temp fix, guess I just need to replace the BCM. Don't know what caused this to happen, wish I did. Sad thing is the Chevy garage is just gonna temp fix it for ya and send you on your merry way, and of course charge you, and of course not tell you anything so you can come back and spend some more of your hard earned money. Hope this helps and if you have any updates let me know.

#764 of 769 Re: 2010 silverado is a LEMON.. will someone help? I doubt it.. [dastoddman] by ryan2274

Mar 11, 2013 (10:32 am)

Replying to: dastoddman (Sep 19, 2010 7:26 pm)
I'm dealing with the same problem. I have a 2007 1/2 ton GMC Sierra w/the VortecMax(6.0). Started having minor issues just like yours about a year ago but truck always restarted. Went to a local Chevy dealer and they said it was a ground. Truck ran fine for a while then slowly started doing the same thing until truck wouldn't start. Turn the key and lights(interior and exterior), radio, windows and locks, fuel pump, and the lights where the gauges are(DIC) would all work. I could also shift into gear. Unfortunetly the none of the gauges(fuel, oil, temp etc.) would not work and could not start the truck. Bought a new battery, still nothing. Had a local mechanic(non dealer garage) check every fuse, every ground, found nothing. After 3 days and him arguing with the Chevy dealership, he traced the problem to be in the BCM. So with the new battery installed he took his personal computer and cleared the codes. Then he went through a BCM restart. And that consist of turning key on waiting 14 minutes, taking key out(very important, take key out). He got this info from a friend in Texas, and i may not have all the steps correct. I will get back to you on this. Did this process 3 times and truck has run perfect every since. Truck will run normal until the battery runs down(which I know eventually will in time) or I have to disconnect a the battery cables(which I know I will at some point in the future). Long story short, truck will run as intended until one of the two happens. This is a temp fix, guess I just need to replace the BCM. Don't know what caused this to happen, wish I did. Sad thing is the Chevy garage is just gonna temp fix it for ya and send you on your merry way, and of course charge you, and of course not tell you anything so you can come back and spend some more of your hard earned money. Hope this helps and if you have any updates let me know.

#765 of 769 Re: Hit the brakes and the truck goes nuts!!!! [carolinanative] by jaymiereynolds

Apr 12, 2013 (11:25 am)

Replying to: carolinanative (Jan 14, 2012 6:22 am)
did this ever get resolved...i have an 09 with the EXACT same issue and it is freaking me out. I cant find anything to really triggers it and it scares me to drive the truck.
 
i took it to the dealer and they cant find anything and said bring it back while its acting up....which is hard to do when i cant really drive the thing while its going crazy....
 
just this morning i was leaving and everything was acting weird when i hit the window switch so i pulled over and turned off the key...it then was DEAD on the hwy for about a min and then everything came back on. ive had the crazy door locks going on and off and the downshifting as well as the stabilitrac turning off and on. I also get to where my AC is acting crazy and blows hot air on one side and cold on the other, again if i turn the truck on and off it all works correctly again.

#766 of 769 Re: Hit the brakes and the truck goes nuts!!!! [jaymiereynolds] by mandkhilde

Apr 12, 2013 (1:16 pm)

Replying to: jaymiereynolds (Apr 12, 2013 11:25 am)
'09 Silverado LT Crew Cab
 
For me, it was a bad megafuse and new battery cables to fix. This should be a recall item but no help from GM other than the cursory response to my post - they didn't respond to my emails or follow up with my dealer. I do have video of the events including massive downshifting at highway speeds, cycling of ABS and traction control warnings, and even proof the passenger airbag light cycles. To me, it would seem this is a perfect storm and fatality waiting to happen - and one that GM is obviously aware of given their responses to many a post in these forums. Someday a lawyer will salivate over my footage.
 
Now, a year later, still no issues - however, I now have power lock issues i believe are a result of the multiple lock/unlock cycles during the events.

#767 of 769 Re: wiring harness fire [kimalberta] by jzblast

May 07, 2013 (9:56 am)

Replying to: kimalberta (Mar 03, 2013 10:59 am)
I had a four door, 2011 Chevy Silverado that caught fire while driving. I have been spending the last two years to get compensated by Chevy. The concept of the fire was never determined, but in my opinion it was a short circuit in the fuel pump. It did short out the harness when the fire started.

#768 of 769 Re: wiring harness fire [jzblast] by obyone

May 07, 2013 (9:49 pm)

Replying to: jzblast (May 07, 2013 9:56 am)
Was the damages paid for by your insurance company? Isn't up to them and their attorneys to go after GM if a defect is noted in the investigation. The insurance companies have the resources and the deep pockets to go after GM if their investigation indicated a flaw in design or manufacturing.
 
Your quest, and you are entitled to pursue, may be a futile effort. As you indicated that the cause of the fire was never substantiated. It is unfortunate.

#769 of 769 no backup lights or cargo lights by jjwoodborer1

Jun 10, 2013 (1:50 pm)

I recently bought a used 2006 silverado 1500. While I was checking things out I noticed that the BACKUP lights didn't come on in reverse, I checked thefuses and they are all OK I need to know if some one has had a simular problem and what could be wrong, I've check the switch and it seems to be working , this switch also controls the neutral and park start, it is rather hard to tell which one is for the BU lights and which is for the start funtion, I have a problem with the CARGO light also when the button is pushed to turn the light on the little light on the dash comes on telling me the light is on but it is lying, I have cheched every thing in this circuit also and it goes to the BCM, as does the BU lights. Does anyone know for sure if the BCMcontrols these 2 items are is it just a convient place for GM to run these wires to.

Messages Page 77 of 77

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