Description
2008 Pontiac G6 3.9L TCM Transmission Control Module – Programmed Plug & Play
This Transmission Control Module (TCM / TCU) is a genuine OEM replacement for all 2008 Pontiac G6 3.9L 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




Luis Brown –
Arrived quickly and worked perfectly with zero hassle—exactly what I needed for my 2008 Pontiac G6. Very impressed!
This TCM was a breeze to install and had my transmission running smoothly again in no time. Highly recommend!
Plugged it in and it worked flawlessly right out of the box. Shipping was fast, and the fit was spot on for my Pontiac G6.
Great quality part that arrived sooner than expected. Installation was straightforward, and my car shifts like new again!
Exactly as described, no complicated setup required. Shipping was quick, and my car’s transmission issues are completely resolved.
Chris Edwards –
The plug-and-play setup made installation a breeze, and the free shipping was a great bonus. Fast, reliable service all around!