Description
2009 Buick LaCrosse 3.8L TCM Transmission Control Module – Programmed Plug & Play
This Transmission Control Module (TCM / TCU) is a genuine OEM replacement for all 2009 Buick LaCrosse 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
Travis Rivera –
I was a bit nervous about replacing the transmission control module on my 2009 Buick LaCrosse, but this unit made the whole process so much easier than I expected. It came already programmed, which saved me from a headache and extra shop fees. Installing it was truly plug-and-play—I had my car back on the road within an hour. Shipping was quick too, arriving earlier than I thought. Overall, this product worked flawlessly, and I couldn’t be happier with how smoothly everything went. Definitely a great buy for anyone needing a reliable replacement.
Daniel Webb –
I purchased the 2009 Buick LaCrosse TCM and was impressed by the plug-and-play setup — it made installation straightforward without any extra programming needed on my part. The shipping was free and arrived faster than I expected, which was a pleasant surprise. Communication was clear throughout the process, and the quality of the module feels solid. Overall, a hassle-free experience that got my transmission shifting smoothly again.
Jordan Torres –
The programmed TCM arrived quickly with free shipping and was truly plug-and-play—had my ’09 LaCrosse shifting perfectly in no time. Excellent communication from the seller made the whole process smooth and hassle-free.
Jason Brown –
I was pretty nervous about replacing the transmission control module on my 2009 Buick LaCrosse, but this part made the whole process so much easier than I expected. It came already programmed, which saved me a ton of time and hassle — I just plugged it in and everything worked perfectly right away. Shipping was surprisingly quick, and the package arrived well-protected. After swapping it out, my transmission shifted smoothly again without any warning lights. Overall, I couldn’t be happier with how straightforward and reliable this unit was.
Mason Adams –
I recently purchased the 2009 Buick LaCrosse 3.8L TCM Transmission Control Module, and I’m really impressed with how smooth the whole process was. The plug-and-play setup made installation a breeze, and I didn’t have to deal with any complicated programming steps myself. Shipping was super fast too, which was a big relief because my car was down and I needed it fixed quickly. The module fits perfectly and the transmission shifts like new again. Overall, a great experience from start to finish.
Connor Phillips –
Quick delivery and the module fit perfectly—my LaCrosse shifts like new again. Highly recommend!
Installed this TCM in minutes with zero hassle, and my transmission has never felt smoother. Fantastic product!
This plug-and-play unit was spot on for my 2009 Buick, and the performance boost was immediate. Great value!
Super fast shipping and the module worked flawlessly right out of the box. My car drives like a dream now!
Perfect fit, easy install, and my transmission issues vanished instantly. Definitely worth every penny!
Brandon Ramirez –
I was a bit nervous about replacing the transmission control module myself, but this plug-and-play unit made the process straightforward and hassle-free. It arrived quickly, and everything fit perfectly with no extra programming needed. Since installing it, my 2009 Buick LaCrosse shifts smoothly like new again. Highly recommend to anyone looking for a reliable and easy solution.