Description
2011 GMC Sierra 4.3L TCM Transmission Control Module – Programmed Plug & Play
This Transmission Control Module (TCM / TCU) is a genuine OEM replacement for all 2011 GMC Sierra 4.3L 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
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566



Logan Watson –
This replacement TCM for my 2011 GMC Sierra was exactly what I needed. It arrived quickly and arrived pre-programmed, which saved me a lot of hassle. Installation was straightforward and it worked flawlessly right away, restoring smooth shifting and optimal performance. Definitely a solid purchase for anyone needing a reliable transmission control module.
Brandon Lewis –
The plug-and-play setup made installation a breeze, and the free shipping was a nice bonus. Communication was spot on, keeping me informed every step of the way.
Jose Wright –
Installed this 2011 GMC Sierra TCM module in minutes, no hassle at all—shipped quickly and works perfectly. Highly recommend!
Owen Torres –
I was really impressed with how straightforward the installation was for this TCM module. My 2011 GMC Sierra had been having shifting issues, and once I replaced it with this programmed plug-and-play part, the transmission started running smoothly again almost immediately. Shipping was quick, which was a relief since I needed the truck back on the road fast. The fit was perfect, and I didn’t have to do any additional programming or tweaks, which saved me a ton of time. Overall, this was a hassle-free fix that got my truck performing like new again.