Last post on Nov 19, 2013 at 12:41 PM
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Chevrolet Tahoe, Electrical, SUV
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#447 of 456 2008 tahoe won't start
Jul 18, 2013 (3:41 am)
I wonder how I can get in touch with Scuba_steveo on here. I'm actually having the same problem as him with the sporadic no start, everything is completely dead, and there is clicking in the door panels when this happens. We have to touch/jiggle cables on the baterry to get it going.
#448 of 456 Re: There is a "class" for a class action suit [kmg10]
Aug 06, 2013 (4:59 pm)
I have my 2002 suburban 1500 since new and luv it...very few issues until lately. I have the same issue with the accessories running the battery down with ignition off. It's been troubleshot to the stereo system and confirmed by pulling the fuse. Not sure how replaceing battery cables would help. Does anyone have some advice? Thanks
#449 of 456 Re: There is a "class" for a class action suit [luvchevybut]
Aug 06, 2013 (5:26 pm)
In addition to replacing battery cables, they also reprogrammed the modules. I think that there are about 5 or 6 modules. On my vehicle, 2009 tahoe, the weird voltage fluctuations may have disrupted/corrupted the modules' memory chips. Pure speculation, but just a thought.
#450 of 456 Re: There is a "class" for a class action suit [luvchevybut]
Aug 06, 2013 (5:31 pm)
When I first got my 2008 Tahoe... if the truck sat for a day or 2... I would go to start it and nothing. Eventually the problem was due to my radio never completely turning off... and of course I didn't know... since it was something behind the radio. Anyway... I had to get a new radio and that fixed the problem. BTW... I will never buy a Tahoe ever again... or a GM product as far as that goes.
#451 of 456 Electrical problem
Aug 15, 2013 (7:54 pm)
I have a 2009 Avalanche and I have experienced several times the problems described multiple times in the posts above. The entire electric system goes on/off while driving and you can hear the door locks going on and off, the battery suddenly dies, the abs light comes on without reason etc..
Went back twice to the Chevy dealer in Melbourne Florida and they could not find any codes related to those issues. ( I wish I had seen this thread before). I believe that I know part the cause and the fix to this: The positive cable connection to the battery post is simply crimped in a metal connection of poor quality. After a while , some oxidation occurs between the copper ( I believe) cable and the metal of the post connection. The oxidation build up is enough to create the power failure. The cable appears to be firmly connected to the battery, so the mechanic doesn't think that there is anything wrong. This is also why in some occasions, just tugging or moving the cable will restore the connection sometimes for several months ,until the oxidation builds up again. Of course, replacing the cable will work, but it is less expensive to just buy an old style battery post connector where the cable is pinched with 2 bolts.
#452 of 456 Re: 2007 Chevy Tahoe turning off while driving [postalqt37]
Sep 08, 2013 (5:57 am)
I recently experienced this known electrical issue for the first time yesterday. I just had my Tahoe at the dealer last week for a strange clacking noise under the hood. They stated I would just have to wait until it did it again. Yesterday everything went haywire and my Tahoe appeared possessed. Door locks, gear shifting abnormally making it difficult to drive and steer due to steering column stiffness and loss of power steering which could have caused serious risk to others around me and my two children in the car.
Turning to the internet and finding that I am one of what is probably thousands complaining of the same issue makes my extremely concerned that GM is not looking out for its current and future customers. I will be filing a complaint with the Attorney General's office with the state of NC immediately.
Not only have we dealt with this issue. We have long dealt with the oil consumption issue that GM continues to say is "normal" consumption. Extremely disappointed in GM and how they are handling MAJOR component issues. We also own a Jeep Wrangler and they are been absolutely amazing anytime we have an addressable issue.
#453 of 456 Re: There is a "class" for a class action suit [kmg10]
Sep 09, 2013 (8:05 am)
It's been about 2 months since the battery cable change, and that seemed to have fixed the problem. At least, I hope it has.
#454 of 456 Re: 2011 Tahoe LT [herkybc130]
Sep 18, 2013 (3:54 am)
Update to this fix. While replacing the VICM module did fix the problems, what it also did was start sending erroneous readings to my ONSTAR app on my smart phone. For instance, it is telling me that I'm getting 166 mpg with a fuel range of 4016 miles until empty. I called ONSTAR and had one of their engineers call me in which I was told this is a common problem across the fleet for both GMC and Chevy vehicles that have had the VICM replaced. Due to the module not being the original one, the new module is not able to talk correctly with the vehicle. Hence why it is sending bad information to the ONSTAR app. I asked why this wasn't fixed as it is a simple software solution. The engineer said that GMC is well aware of the problem but has decided not to throw money at it. Anybody else having this issue?
#455 of 456 Re: 2009 Tahoe Electrical/Computer Issues [src13]
Nov 19, 2013 (3:17 am)
A little experience that I have tells me that maybe your body control module may need to be reset or replaced. The bcm control many of your electrical workings such as clock, radio, outside mirrors, and reading you key and sending a message to start the engine. These things don't stop working, they just act up. The bcm controls many different things! Hope this helps.
#456 of 456 dead as a door nail 2008 Tahoe
Nov 19, 2013 (12:41 pm)
I too have had issues with electrical system, It would go completely black, no onstar, no power even for door locks. H
ad it into dealership at least 10 times no solution. I did discover if I wiggled the ground cord behind the battery it would turn on the power and it would start. The dealership replaced it and a lot of other modules. I thought it was fixed but now I am seeing the same crap again. I just replaced the battery again. I think something must be draining it slowly as if I leave it for more than five days it is dead. I am mad my extend warranty is over and now I am stuck paying for a problem that should have been fixed. It seems from the look of this forum I am not the only one, Come on GM step up lets find the problem recall and fix it.