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
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!