Description
2007 Cadillac STS 4.6L TCM Transmission Control Module – Programmed Plug & Play
This Transmission Control Module (TCM / TCU) is a genuine OEM replacement for all 2007 Cadillac STS 4.6L 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 Roberts –
This TCM was a perfect fit for my 2007 Cadillac STS, installed in minutes and shifted like new again. Shipping was quick and hassle-free!
Installed this transmission module with zero issues—plugged it in and drove off smoothly. Super happy with the fast delivery too!
Absolutely seamless swap on my STS; the programmed module worked perfectly right out of the box. Quick shipping made the process even better.
Had my transmission control module replaced in no time, and the car runs flawless now. The ready-to-go setup saved me a ton of effort!
The programmed TCM arrived fast and was a breeze to install. My Cadillac shifts like it just rolled off the lot again!
Robert Rivera –
Fast shipping and the plug-and-play TCM fit perfectly in my 2007 Cadillac STS—installation was a breeze!