Description
2009 Hummer H3 3.7L TCM Transmission Control Module – Programmed Plug & Play
This Transmission Control Module (TCM / TCU) is a genuine OEM replacement for all 2009 Hummer H3 3.7L 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
Michael Hill –
I was really impressed with how straightforward the installation was on this TCM module for my 2009 Hummer H3. It arrived quickly and matched the description perfectly, making it a hassle-free replacement. After swapping it in, my transmission shifted smoothly without any error codes. Definitely a reliable fix that saved me a lot of time and stress.
Tyler Campbell –
Installation was a breeze and my Hummer runs smoothly again—exactly what I needed. Fast shipping and flawless fit!
This transmission module was exactly as advertised, arrived quickly, and got my H3 shifting perfectly. Highly recommend!
Plugged right in with no hassle, and my H3 feels like new. Great quality and excellent customer support helped a lot.
Super quick delivery and the module programmed perfectly, making the whole replacement stress-free. Love how easy it was!
Got this for my 2009 Hummer H3 and it worked flawlessly out of the box. No extra programming needed and my truck drives great now.
Dominic Campbell –
Arrived quickly with free shipping and was a perfect plug-and-play fit for my 2009 Hummer H3. The whole process was smooth and hassle-free.
The programming service these guys offer is top-notch—installed the TCM module and it worked flawlessly right out of the box.
Great communication throughout the order; they answered all my questions fast and kept me updated until it shipped.