Description
2010 Hummer H3 5.3L TCM Transmission Control Module – Programmed Plug & Play
This Transmission Control Module (TCM / TCU) is a genuine OEM replacement for all 2010 Hummer H3 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
Samuel Hill –
Plug-and-play setup was flawless, and shipping was super fast—had my Hummer running smoothly in no time.
Dominic Chapman –
I needed a replacement TCM for my 2010 Hummer H3, and this one worked perfectly right out of the box. The plug-and-play setup saved me a lot of hassle since I didn’t have to deal with complicated programming myself. Shipping was also very reasonable and arrived quicker than I expected, which was a big help since I was eager to get my vehicle back on the road. The quality of the module feels solid, and after installation, my transmission shifts smoothly again. Overall, a seamless experience from order to installation.
Aiden Bell –
This transmission module fit perfectly and got my Hummer shifting smoothly again—super easy install and fast delivery!
Plugged this in with no hassle, and it works like a charm. Shipping was quick, and the car feels like new!
Swapped out the TCM in minutes thanks to the true plug-and-play design—shifts better than ever now. Really impressed!
Got my H3 back on the road fast thanks to this ready-to-go transmission control module. Highly recommend for a hassle-free fix!
The programming was already done, so installation was a breeze. My Hummer runs flawlessly now, and delivery was surprisingly speedy!
Michael Rivera –
I purchased the 2010 Hummer H3 5.3L TCM Transmission Control Module and was really impressed by how straightforward the plug-and-play feature made installation. The setup was seamless, and everything worked perfectly right out of the box. Shipping was free and arrived sooner than I expected, which was a great bonus. Customer support was also very responsive, answering my questions promptly and making the whole process stress-free.
Joel Kelly –
I was a bit nervous ordering a transmission control module online for my 2010 Hummer H3, but this product exceeded my expectations. The TCM arrived quickly with free shipping, which was a pleasant surprise. Installation was straightforward since it came pre-programmed and ready to plug in. After swapping it out, my transmission shifted smoothly again without any hiccups. The seller also kept me informed throughout the process, which helped ease my mind. Overall, a reliable product and excellent service—I’m very satisfied.