Description
2012 Chevrolet Express 6.0L TCM Transmission Control Module – Programmed Plug & Play
This Transmission Control Module (TCM / TCU) is a genuine OEM replacement for all 2012 Chevrolet Express 6.0L 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



Leo Miller –
This transmission control module was exactly what my 2012 Chevy Express needed. The programmed unit arrived quickly and installed without any hassle, fitting perfectly and working right away. I appreciated the clear instructions and how straightforward the whole process was—saved me a lot of time and trips to the shop. Definitely a reliable solution for anyone facing transmission issues.
Aaron Baker –
The plug-and-play setup made installation a breeze, and the free shipping was a nice bonus. Communication was spot-on, kept me informed every step of the way.
James Moore –
Works perfectly right out of the box—installation was a breeze and my van runs smoother than ever. Fast shipping was the icing on the cake!
Nicholas Keller –
I purchased the 2012 Chevrolet Express 6.0L TCM and was really impressed with the plug-and-play setup. It saved me a lot of time since it came fully programmed and ready to install. The shipping was free, which was a nice bonus, and the module worked perfectly without any issues. Overall, a smooth and hassle-free experience from order to installation.