Description
2008 Pontiac Grand Prix 3.8L TCM Transmission Control Module – Programmed Plug & Play
This Transmission Control Module (TCM / TCU) is a genuine OEM replacement for all 2008 Pontiac Grand Prix 3.8L 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
Benjamin Sanders –
I was impressed with how quickly the 2008 Pontiac Grand Prix 3.8L TCM arrived, especially with the free shipping option they offered. The plug-and-play setup made installation straightforward, and the transmission shifted smoothly right away. Their team also answered my questions promptly, which gave me confidence throughout the process. Overall, a reliable product and solid customer service.
Mark Brown –
Arrived quickly and worked perfectly right out of the box—installation was a breeze. Highly recommend for anyone needing a reliable TCM replacement.
Caleb Burton –
I was really impressed with how easy the installation was on this 2008 Pontiac Grand Prix 3.8L TCM. It came fully programmed and ready to go, which saved me a lot of time and hassle. The shipping was super fast and didn’t cost a fortune, which was a nice surprise. I had a couple of questions before ordering, and their customer service responded right away with clear, helpful answers. Overall, the whole process was smooth, and my transmission is running like new again.
Nathan Walker –
The 2008 Pontiac Grand Prix 3.8L TCM module arrived quickly and was exactly as described. Installation was straightforward since it came pre-programmed, which saved me a lot of time and hassle. After swapping it in, my transmission shifted smoothly without any warning lights. Overall, a reliable fix that worked perfectly for my car.
Cooper Sharp –
Great quality TCM and the plug-and-play setup made installation a breeze. Shipping was fast and free, highly recommend!