Description
2009 Buick LaCrosse 5.3L TCM Transmission Control Module – Programmed Plug & Play
This Transmission Control Module (TCM / TCU) is a genuine OEM replacement for all 2009 Buick LaCrosse 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
Jorge Wright –
This transmission module arrived quickly and worked perfectly right out of the box—super easy install! Highly recommend for anyone needing a reliable fix for their Buick.
Liam Allen –
I recently replaced the TCM on my 2009 Buick LaCrosse with this programmed module, and I couldn’t be happier. Installation was straightforward—literally plug and play without any complicated setup. My car shifted smoother than it has in years, and the transmission issues I was dealing with disappeared almost immediately. Shipping arrived quicker than I expected, which helped me get my car back on the road fast. The quality feels solid, and I appreciate that it came pre-programmed, saving me a lot of hassle. Overall, a fantastic product that worked exactly as promised.
Ryan Ward –
I was pleasantly surprised by how easy the installation was with this TCM module—just unplug the old one and plug this in, no reprogramming required. It arrived quickly and fit perfectly in my 2009 Buick LaCrosse 5.3L. Since swapping it out, my transmission shifts smoothly and feels like new again. The whole process saved me a lot of time and hassle compared to other repairs I’ve done in the past.
Brandon Smith –
The plug-and-play setup made installation super easy, and the free shipping was a nice bonus. Quality part and fast service!