Description
2010 GMC Sierra 6.6L TCM Transmission Control Module – Programmed Plug & Play
This Transmission Control Module (TCM / TCU) is a genuine OEM replacement for all 2010 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
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566
Diego Anderson –
I was struggling with transmission issues on my 2010 GMC Sierra and decided to try this 6.6L TCM module. It arrived quicker than I expected, and installation was surprisingly straightforward—just unplug the old module and plug this one in. After a short drive, I noticed the shifting was smooth and responsive again, like the truck was brand new. Having a reliable communication with tech support made me feel confident during the whole process. Overall, this was a fantastic fix that saved me a costly visit to the mechanic.
Replacing the transmission control module on my GMC Sierra was something I dreaded, but this product made the whole experience painless. It came pre-programmed, which saved me hours of setup, and I didn’t need any special tools to get it going. The difference in how the transmission shifts is night and day—no more hesitation or rough gear changes. Shipping was prompt, and the instructions were clear and easy to follow. I’m genuinely impressed with the quality and reliability of
Adam Allen –
I was a bit nervous about ordering a transmission control module online, but this 2010 GMC Sierra TCM was exactly what I needed. The fact that it came programmed and ready to install saved me a lot of hassle, and it was truly plug-and-play as promised. Shipping was surprisingly fast, and it arrived sooner than I expected, which got my truck back on the road quickly. The quality of the part feels solid, and ever since installing it, the transmission shifts smoothly without any issues. The whole experience was straightforward and hassle-free, which I really appreciate.
Samuel Reed –
I had been struggling with transmission issues on my 2010 GMC Sierra and finally decided to order this TCM. The plug-and-play feature made installation a breeze, saving me a ton of time and hassle. What impressed me most was how quickly the module arrived with free shipping, which was a nice bonus. The truck shifted smoothly again as soon as I got it in, and everything felt like new. I really appreciate the quality and care that went into this product. This was definitely a great investment for my truck.
Jason Perez –
Installed this TCM in my Sierra with zero hassle—worked perfectly right out of the box and shipped super fast. Absolutely recommend!
Austin Brooks –
I ordered the 2010 GMC Sierra 6.6L TCM Transmission Control Module and was really impressed with how easy the plug-and-play setup was—no complicated programming on my end. The item arrived quickly with free shipping, which was a nice bonus. Their team answered all my questions promptly, making the whole process smooth and worry-free. The transmission shifts perfectly now, and I’m very satisfied with the quality.
Tyler Evans –
I was a bit nervous about replacing the transmission control module myself, but this unit for my 2010 GMC Sierra made the job way easier than expected. It came ready to go right out of the box, and I didn’t have to worry about any complicated programming or delays. The install was straightforward, and my truck shifted smoother than it has in years once everything was connected. Shipping arrived quicker than I anticipated, which was a nice surprise. Overall, a high-quality part that restored my Sierra’s performance perfectly.
After dealing with a faulty transmission control module for weeks, I finally decided to order this replacement for my 2010 GMC Sierra 6.6L. I was pleasantly surprised by how simple the setup was — it was essentially plug and play with no extra fuss. The truck started running like new again, and I noticed immediate improvements in gear shifting and overall responsiveness. The seller even answered a couple of questions I had before buying, which made me feel confident about my purchase. Definitely
Tyler Jenkins –
Super fast shipping and the plug-and-play setup made installing the TCM on my 2010 Sierra a breeze. Excellent quality and definitely worth it.
Liam Richardson –
This Transmission Control Module was exactly what I needed for my 2010 GMC Sierra. It arrived quickly and was ready to install right out of the box, which saved me a ton of time. After swapping it in, my truck shifted smoothly and performed like new again. The whole process was straightforward, and the support team was helpful when I had a couple of questions.