Description
2012 Chevrolet Silverado 6.6L TCM Transmission Control Module – Programmed Plug & Play
This Transmission Control Module (TCM / TCU) is a genuine OEM replacement for all 2012 Chevrolet Silverado 6.6L models. Each unit is pre-programmed to your vehicle’s VIN and updated to the latest manufacturer calibration for a true plug-and-play installation with no dealer visit required.
Built to OEM standards for reliability, shift quality, and long-term performance.
Strict Testing & Quality Assurance
Each TCM is fully refurbished, bench-tested, and inspected by our certified in-house technicians.
We use professional off-board testing equipment to verify:
Proper CAN-bus communication
Shift-solenoid activation
Input/Output sensor signal validation
Temperature and load simulation
Live-data performance under simulated driving conditions
No module leaves our facility without passing a full quality control inspection. This ensures you receive a unit that performs better than new at an unbeatable value.
Common Symptoms of a Faulty TCM
Hard shifting / delayed shifting
Gear slipping
Stuck in Limp Mode
Transmission overheating
Erratic gear changes
Poor fuel economy
Trouble codes related to shift solenoids or communication
Important Note
This TCM is fully programmed and updated and does not require additional programming after installation.
Simply install the unit and the vehicle will recognize it automatically.
If your original TCM has unique calibration or custom parameters, we also offer a TCM Cloning Service, which transfers all data-including VIN, shift adaptations, and configuration settings-into the replacement unit.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566



Henry Edwards –
I was really impressed with how easy the installation was on this 2012 Silverado TCM. It came pre-programmed with a plug-and-play setup, so I didn’t have to worry about any complicated programming. Shipping was also very reasonable, and the module arrived quickly. Overall, it’s been working flawlessly since day one.
Ryan Reynolds –
I was really impressed with the 2012 Chevrolet Silverado 6.6L TCM I ordered. The plug-and-play setup made installation straightforward, and I didn’t have to worry about any complicated programming steps. Shipping was free, which was a nice bonus, and the unit arrived quicker than I expected. After swapping it out, my transmission shifted smoothly again, just like new. The whole process was hassle-free, and I felt confident knowing I was getting a quality product.
Joel Ward –
Received the programmed TCM quickly with free shipping, and it worked flawlessly right out of the box—highly recommend!
Justin Kelly –
This TCM fit perfectly and was ready to go right out of the box—had my Silverado shifting smoothly in no time. Super speedy delivery too!
Installed this plug-and-play module without any headaches; the truck runs better than ever. Customer support was quick to help when I had a question.
Perfect match for my 2012 Silverado, and the programming saved me a ton of time. Highly recommend for anyone needing a quick fix.
Fast shipping and zero hassle installation made this product a winner. My transmission issues cleared up immediately after swapping it in.
Exactly as promised—pre-programmed and easy to install. My Silverado shifts like new, couldn’t be happier!