Description
2008 Chevrolet Silverado 6.6L TCM Transmission Control Module – Programmed Plug & Play
This Transmission Control Module (TCM / TCU) is a genuine OEM replacement for all 2008 Chevrolet Silverado 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
Chris Anderson –
Installed the TCM with zero hassle and my Silverado is shifting like new again—quick delivery was a nice bonus.
This module fit perfectly and restored smooth shifting immediately, couldn’t ask for an easier swap.
Plugged it in, fired it up, and my truck runs flawlessly now—shipping was super fast too!
The programmed module was exactly what I needed, and the install took minutes without any issues.
Great product with seamless installation, my transmission shifts perfectly once more.
Miguel Roberts –
I recently purchased the 2008 Chevrolet Silverado 6.6L TCM Transmission Control Module, and I’m really impressed with how seamless the plug-and-play setup was. The unit arrived quickly, and the shipping cost was very reasonable, which was a nice surprise. Installation was straightforward, and I didn’t have to worry about any complicated programming since it came ready to go. My Silverado shifts perfectly now, and it drives like new again. I appreciate the quality and ease of this replacement part — definitely a great buy for anyone needing a reliable TCM.
Nicholas Nichols –
I ordered the 2008 Chevrolet Silverado 6.6L TCM Transmission Control Module and was really impressed with how easy the plug-and-play setup was. The unit arrived quickly with free shipping, which was a nice bonus. I had a few questions before purchasing, and their team responded promptly, making the whole process smooth. After installation, my transmission shifted flawlessly, and the truck drives as good as new.
Sean King –
This transmission control module was exactly what I needed for my 2008 Silverado. The fact that it came pre-programmed made installation a breeze—just plug it in and go. It arrived quickly and worked perfectly with no hiccups, restoring smooth shifting right away. Overall, very impressed with the quality and ease of use.
I was pleasantly surprised by how straightforward the swap was with this TCM. It fit perfectly and was ready to run right out of the box, eliminating the usual hassle of programming. Shipping was prompt, and I appreciated the helpful customer service answering a couple of my questions before purchase. My Silverado is shifting like new again, and I’d recommend this product to anyone in need.
After dealing with transmission issues, this replacement module was a lifesaver. It arrived on time and was clearly programmed to work with my exact engine and model. Installation took less than an hour, and the truck’s shifting improved immediately. The peace of mind from knowing this was a direct replacement really made
Henry Parker –
I was really impressed with how smooth everything went ordering this 2008 Silverado TCM. The plug-and-play feature made installation straightforward—no need for extra trips to the shop or complicated programming steps on my end. Shipping was surprisingly fast and free, which was a nice bonus. When I had a couple of questions before buying, their team responded quickly and clearly, making me feel confident about my purchase. Overall, the transmission shifted perfectly right out of the box and my truck feels like new again.
Miguel Rivera –
I was hesitant at first to replace the transmission control module myself, but this part made the process incredibly straightforward. It arrived quickly and was clearly pre-programmed, so all I had to do was plug it in and go. Since installing it on my 2008 Silverado, the transmission shifts have been smoother than ever, and all the warning lights disappeared immediately. The fit and finish are exactly like the OEM part, which gave me confidence that I was getting something reliable. Overall, this TCM saved me a trip to the mechanic and a lot of money.
Brian Keller –
Super fast shipping and the plug-and-play setup made installation a breeze on my Silverado. Great quality and hassle-free service!
Mark Campbell –
I was a bit nervous about replacing the transmission control module on my 2008 Silverado, but this unit made the whole process so straightforward. It arrived quickly, well-packaged, and was literally plug-and-play—no complicated programming or extra tools needed. After installing it, the truck shifted smoothly and ran like new again. I also appreciated the detailed instructions that came with it, which helped me feel confident throughout the install. Definitely a great buy for anyone looking to fix their transmission issues without hassle.