Description
2009 GMC Sierra 6.6L TCM Transmission Control Module – Programmed Plug & Play
This Transmission Control Module (TCM / TCU) is a genuine OEM replacement for all 2009 GMC Sierra 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
Ethan Walker –
This TCM was exactly what I needed—installed in minutes with zero hassle, and my truck runs like new again. Super fast shipping too!
Travis Bell –
I was a bit nervous about replacing the TCM on my 2009 GMC Sierra, but this module made the process surprisingly straightforward. It arrived quicker than I expected and came fully programmed, so I just plugged it right in without any hassle. Since the installation, my transmission shifts have been smoother than ever, and no error codes popped up. The fit and finish were spot on, clearly made with quality in mind. Overall, this was exactly what I needed to get my truck back on the road without headaches. Highly recommend for anyone needing a reliable replacement!
Isaac Cooper –
I was really impressed with how easy the installation was thanks to the programmed plug-and-play feature of this TCM for my 2009 GMC Sierra. The shipping was fast and free, which was a nice bonus. The unit fit perfectly and my transmission shifted smoothly right away. Customer support was also quick to answer a couple of my questions before I ordered, which gave me confidence in the purchase.
Shane Wright –
The plug-and-play TCM was exactly what I needed, and their quick responses made the whole process smooth. Shipping was free and arrived faster than expected.
Cooper Lewis –
The 2009 GMC Sierra 6.6L TCM arrived quickly and was ready to install right out of the box. It was a true plug-and-play replacement, saving me a ton of time and hassle compared to trying to reprogram a module myself. Since installing it, my transmission has shifted smoothly and without any error codes. Very happy with the quality and support from the seller.