2010 Chevy Cobalt Transmission Control Module (TCM) Replacement

I’m continuing to try to stop the common “crazy dashboard lights” every now and again on my 2010 Chevy Cobalt LT.  I’ve tried so many things to cure it with no luck, including replacing the ECM (see separate video on that).  This video overviews what I’ve done and shows how to replace the TCM on the car.  We’ll see if a new TCM does the trick.  I’ll update the description and comments if it starts to act up again!  If this doesn’t fix it, I think the only thing left is digging into wiring harnesses (shudder).

Update January 2022: I installed this new TCM in June 2021.  I went "problem free" until October 2021 - almost long enough to convince myself it was fixed.  I cleared the codes and it behaved normally again.  I'd pretty much at that point decided I'd just keep a code reader handy and when it does this, just clear the codes and it should resolve the problem for a while.  In other words, just live with it.

Unfortunately, the car got wrecked (other driver's fault) in December 2021 so we'll never really know if I'd have been able to actually solve this problem.
Some questions will never be answered...

The car has 135,200 miles on it at the time of making this video.


I hope you enjoy!  Subscribe to the channel and if you’re interested, you can support me on BuyMeACoffee at https://www.buymeacoffee.com/edvancise


Parts (some links are Amazon Affiliate links):
• Remanufactured Transmission Control Module (TCM): https://www.ebay.com/itm/194936227704  


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Intro (0:00)
Removing the old TCM (1:03)
Installing the new TCM (2:00)
Testing it out (2:46)

Disclaimers:
This video is NOT sponsored by any of the brands mentioned throughout this video or video description.  All thoughts mentioned are my own.  Some links provided are affiliate links.  They do not cost you anything, but I make a small percentage from the sale.  Honesty is key on my channel, thank you for supporting me!
I am a Do It Yourself, also known as DIY, mechanic. I am NOT a professional mechanic. I do not have any formal training in the automotive field.  I assume no liability for anything you choose to do to your car/vehicle or equipment before or after watching one of my videos.  All DIY repairs or modifications you perform are made at your own risk. Sometimes, even if you've done everything the right way, you can destroy or damage one or more things on your car or equipment. You must understand this, but by leveraging knowledge and patience, the probability of encountering one or more problems can be reduced.
Also, if for some unfortunate reason, I do give incorrect instructions and something breaks because you followed my instructions, I will NOT reimburse or pay in any way for whatever cost that may be incurred due to following my wrong instructions.  
Lastly, please don't do anything to your vehicle or equipment unless you yourself feel comfortable and confident in doing so.