Description
2012 Chevrolet Silverado 5.3L TCM Transmission Control Module – Programmed Plug & Play
This Transmission Control Module (TCM / TCU) is a genuine OEM replacement for all 2012 Chevrolet Silverado 5.3L 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





Cooper King –
I was really impressed with how quickly this TCM arrived, and the plug-and-play setup made the installation completely hassle-free. The quality of the unit is top-notch, and it fixed all the shifting issues my Silverado was having. The seller also communicated promptly and kept me informed throughout the process, which gave me confidence in the purchase. Definitely recommend for anyone needing a reliable transmission control module.
John James –
I was a bit nervous ordering this transmission control module since I’ve never swapped one before, but it fit perfectly and was ready to go right out of the box. The installation was straightforward, and my Silverado fired up without a hitch afterward. It’s been a few weeks now, and shifting feels smooth and responsive—just like it should. I really appreciated the quick delivery too, which helped get my truck back on the road faster than expected. Overall, a solid purchase that made a big difference.
Colin Brown –
Received the 2012 Silverado TCM with plug-and-play programming—installation was a breeze, and the free shipping was a nice bonus. Communication was quick and clear throughout the process, which I really appreciated.
Brandon Hall –
This replacement TCM for my 2012 Silverado was exactly what I needed. It arrived quickly and came programmed, so installation was straightforward without any extra hassle. After swapping it out, my transmission shifted smoothly again, and the truck runs like new. Really impressed with the quality and the ease of getting everything set up.
Andrew Morgan –
The module arrived quickly and worked perfectly—installation was a breeze with no hassles. Highly recommend for anyone needing a reliable replacement.
Super straightforward to install and got my Silverado shifting smoothly again. Shipping was fast, which was a huge plus.
Really impressed with how true to plug-and-play this was. Saved me a ton of time and frustration, and the truck runs great now!
Exactly what I needed for my 2012 Silverado, arrived on time and worked right out of the box. Couldn’t ask for a better experience.
Fast delivery and flawless operation—this TCM module fixed my transmission issues without any extra programming needed.