Last post on Dec 02, 2013 at 1:45 PM
You are in the Chevrolet Cobalt
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Chevrolet Cobalt, Electrical, Coupe, Sedan
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#223 of 361 Re: 2005 [gmcustsvc]
Jun 01, 2011 (1:47 pm)
Thanks for your response. My vehicle is 2006 Cobalt LS, VIN 1G1AK55F167820802. Purchased as a insurance rebuild 2 years ago, so out of warranty. (It was side damage only). I took my vehicle to Christiansen Chevrolet, Highland, IN in Feb. '11 to replace power steering motor under recall. Made the existing electrical/trans/power steering issue worse. Took it back 2-3 weeks later at which point they diagnosed the TCM module. I knew this was the code being thrown off from the beginning (I can go to Auto Zone), so I asked them if they knew for sure that the error/communication problem was at the TCM end or at the other end with the BCM. I also asked if they were sure about the TCM because I was also getting the loss of power steering warning. They seemed confident that it was the TCM, so I agreed to pay $300 to have it replaced and reprogrammed. I'll be polite when I say that the reprogram charge is a joke. It's not like the mechanic/technician is standing over my car for 2 hours while it reprograms. Plus I'm told it is done in far less than 2 hours. This didn't fix the problem. They agreed to look at it the next Friday, so I took off early from work, only to find out they were backed up and couldn't get to it. I asked to bring it back the next day, Saturday, which they agreed, only to find out on Saturday that their "best electrical guy" wasn't in. After two hours they wanted to change out the battery (which I had replaced myself in Dec.) for $150, but couldn't tell me how that might do anything - they said they had to start somewhere. They also diagnosed that my control arm bushings had worn out (maybe from the trans jerking all the time, but probably just from age - common to Cobalts I've learned). But they wanted to charge me $650 for that. I asked the service manager and the mechanic why would I want to give them $650 to fix a problem when they couldn't fix the major issue and could only guess? I had a garage mechanic replace the bushings for $180. So I'm at the same spot as before, and like the poster I replied to, we have no real assurance that Chevy has any real idea what the problem is other than to replace very expensive computer modules. Having read a number of posts on this bulletin board and others, I know this is a known problem with Cobalts, if not with other cars with similar computer systems. What is a mystery to me is how any dealer mechanic/technician cannot have encountered "computer/electrical" issues on the same or similar vehicles and would know through their experience and intuition what the source of the problem is. Instead, they are seemingly totally slaves to the diagnostic codes. I can provide you with my direct contact info, if you can provide me your GM customer service e-mail.
#224 of 361 Re: 2005 [wweissbeck]
Jun 02, 2011 (11:55 am)
Unfortunately, due to the fact the vehicle has a branded title I am unable to assist. If you would like to contact Customer Assistance directly the number is 1.800-222-1020 or if you would like to email, you can do this directly on the GM.com site. Click on Contact Us.
Caron, GM Customer Service
#225 of 361 2008 Chevy Cobalt Stereo/Speaker/Electrical Issue
Jun 03, 2011 (5:02 pm)
Hi, I own a 2008 Chevrolet Cobalt LT 4 door Sedan. I purchased it in May 2009 with 29,110 miles on it. I am having issues with my speaker system and my stereo display. My stereo display flickers frequently then displays fine. My speaker system will intermittently not work in the front for about 30 minutes of time while still working in the back. At first I thought this was an issue with maybe a fuse but the speakers in the front will still occasionally work. My speaker system is the default that comes with the car. My car also has a history of electrical issues according to the carfax report when I bought it but I don't have a copy of that and don't know what the specific electrical issues were.
Also, is this something that could possibly be covered under my GM Extended Warranty? I would like to know before taking my car to a dealership to get looked at. My warranty has been great as my remote for my car died last year and the dealership where I use to live was able to replace free of charge to me under the warranty.
I appreciate any help as I have little knowledge when it comes to these things. Thank you in advance.
#226 of 361 Re: 2008 Chevy Cobalt Stereo/Speaker/Electrical Issue [bhauser86]
Jun 06, 2011 (8:40 am)
I would encourage you to contact the dealership directly to see what is covered. Please keep me posted when the issue has been taken care of.
Caron, GM Customer Service
#227 of 361 Re: Electrical [arkgreen]
Jun 09, 2011 (1:03 pm)
BCM has finally been replaced but didn't solve all of my issues. Now they tell me it's the TCM and for another $450.00 they will change that too. A total of around $1200.00 and I will be good. They had another TCM there and plugged into my car and they said everything worked fine. So hopefully, this will all be took care of.
#228 of 361 2005 Cobalt Electrical
Jun 09, 2011 (4:20 pm)
Driving today temp in the car registers a blistering 101 outside. So of course the ac is on and like any Cobalt I've ridden in, not the best. It starts going cold to hot to cold and hot again. 'bout half mile down the road I notice the speedometer start to ocilate between roughly 30 to 85 miles an hour. Holding the throttle steady I know we were still doing about 65. Seemingly the same time the car warns of a power steering fault. All goes away a few mins later then then the tranny starts to slip in and out of gear. We get to our destination finish getting a gallon of milk and go back to the car. Ride home windows down and NO AC. No problems. The only thing connecting all systems is power. Called our dealership they can't see me till Tuesday. They also "said" that they replaced the power steering yet did not know this due to the fact that I never had a problem so I would ride it out. So where does one go from here? Not going to pay thousands of dollars for someone to guess what the cars problems are! What happened to standing behind a product? How many problems need to be addressed before a company says hey we have a problem? Can anyone help? If so thank you in advance!
#229 of 361 Re: 2005 Cobalt Electrical [sr_mounce]
Jun 10, 2011 (5:23 am)
As you can see from my earlier post, and those of others, that there is a problem. Unfortunately, I bought my '06 Cobalt as an insurance rebuild, so GM washes their hands of it (even though it was body damage). My major beef is that I refuse to believe that "trained" GM "Mr. Goodwrench" mechanics have to guess, rely exclusively on diagnostic codes (they replaced my TCM for $300, but it solved nothing), and they have no built up store of knowledge/experience regarding GM models (especially one like the Cobalt that has been around since '05). At $79/hr, I can't afford to pay for guesses, or install $300 parts to see if that fixes it. Surely by now they know the difference in symptoms between a bad BCM, TCM, power steering motor, or undiagnosed short. Keep me posted - I still need to fix mine (the summer heat makes it worse), and I need to know more than the mechanic.
#230 of 361 Re: 2005 Cobalt Electrical [sr_mounce]
Jun 10, 2011 (10:45 am)
If your dealer is having a hard time fixing the issue, I would recommend asking him to involve Technical Assistance. Please let me know how things go. Have a great weekend!
GM Customer Service
#231 of 361 Re: Electrical [arkgreen]
Jun 10, 2011 (11:29 am)
I'm happy for you if that fixes everything, but $1,200 for two computer chips is a bit pricey. It's not like they have to build the parts special. Those two pieces and software are 5% of the cost of a new car. It just doesn't make sense. You can get a grease monket to do a trans for that price. And worse, it's not like installing these parts and programming them requires any skill. To me this is just a hidden GM money maker.
#232 of 361 Re: Only one with Elecitrical issues???? [gerald41]
Jun 14, 2011 (3:31 am)
i wish my car has only had one problem. everytime i turn around its something from the key being stuck in the ignition and the locks going up and down by themself to now the check engine light is on and now the car wont start.!!! dont have the money to get it fixed or even towed to get a scan done on it. just wait till your about to pay it off and it'll die on you like it died on me !