Description
2008 Chevrolet Trailblazer 5.3L TCM Transmission Control Module – Programmed Plug & Play
This Transmission Control Module (TCM / TCU) is a genuine OEM replacement for all 2008 Chevrolet Trailblazer 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




Marcus Payne –
I was a bit nervous about ordering a transmission control module online, but this plug-and-play TCM for my 2008 Chevrolet Trailblazer made the whole process incredibly simple. The module arrived quickly with free shipping, and installation went smoothly without any hiccups. What really impressed me was how it came pre-programmed, so I didn’t have to take it to a shop for coding. My Trailblazer’s shifting feels smoother now, and I’m glad I found a reliable source that offers such professional ready-to-go parts. They also responded promptly to my initial questions, which gave me extra confidence before purchasing.
David Miles –
I purchased the 2008 Chevrolet Trailblazer 5.3L TCM Transmission Control Module and was really impressed with the plug-and-play setup. The module arrived quickly with free shipping, which was a nice surprise. Installation was straightforward, and the vehicle shifted smoothly right away. Customer support also answered my questions promptly, making the whole experience very hassle-free.
Adrian Mitchell –
The plug-and-play setup made installation a breeze, and the free shipping was a nice bonus. Shipping was super fast and their support answered all my questions right away. Excellent communication throughout, and the professional programming service got my truck running perfectly in no time.
Dean Clark –
I had been struggling with transmission issues on my 2008 Chevrolet Trailblazer for weeks and decided to order this 5.3L TCM module. The plug-and-play setup made the whole replacement process incredibly smooth, even for someone like me who isn’t a professional mechanic. What really impressed me was how quickly the module arrived with free shipping, which was a nice surprise. After installation, my transmission shifted perfectly, just like new. This purchase definitely saved me a lot of time and hassle compared to other fixes I considered.
Samuel Scott –
Worked perfectly right out of the box and was shipped quickly—exactly what I needed for my Trailblazer’s transmission fix. Couldn’t be happier!