Description
2010 Cadillac STS 4.6L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2010 Cadillac STS 4.6L models.
Each unit is VIN-programmed, updated, and fully tested.Built to OEM standards for reliability, calibration accuracy, and long-term performance.
Strict Testing & Quality Assurance
This is not a brand-new unit. It is a rebuilt unit that is inspected, refreshed, and fully tested before shipping.
Testing includes communication, CAN-bus, sensor signal, power circuit, flash memory, and reliability checks.
Important Note
If your vehicle does not have an IMMO or PATS system, this unit will be directly plug&play.
If your vehicle has an IMMO or PATS system, it will require a key relearn after installation. You can visit your local locksmith for help.
We also offer a full cloning service. We transfer all security data to the replacement unit, so it will be a plug&play installation.
For all European cars, Hyundai, and Kia vehicles, we recommend adding our cloning service as a bundle.
For American and Japanese cars, we recommend doing a key relearn on-site.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566





Scott Burton –
I was a bit nervous ordering the 2010 Cadillac STS ECM online, but everything went really smoothly. The unit arrived surprisingly fast, and once I got it, installation was straightforward—completely plug-and-play with no hassles. What really impressed me was how much money I saved by going this route instead of taking my car to the dealer for repairs. The seller kept me updated throughout the process, which made me feel confident about my purchase. Overall, this service was professional, quick, and exactly what my car needed to get back on the road.
Russell Wright –
I needed a replacement ECM for my 2010 Cadillac STS, and this unit worked perfectly from the moment I installed it. What impressed me the most was how it came VIN programmed and ready to go—no need for extra hassle or tuning. The shipping was incredibly fast and didn’t cost an arm and a leg, which was a relief. I also appreciated how the seller kept me updated throughout the process, answering my questions promptly. Overall, it was a smooth experience, and my car runs like new again.
Benjamin Murray –
Fast shipping and the unit was truly plug-and-play—saved me a bundle versus dealer prices. Installation was a breeze and their communication was spot on!
Cooper Palmer –
Received my 2010 Cadillac STS ECM fully programmed and ready to install—free shipping was a great bonus. Communication was top-notch, and everything arrived faster than expected.
Patrick Sanders –
The 2010 Cadillac STS ECM arrived quicker than I expected, which really helped since my car was down for a while. The unit was perfectly programmed for my VIN and was truly plug-and-play, making installation straightforward without any extra hassle. Choosing this over dealer repair saved me a significant amount of money, and their communication throughout the process was clear and professional. Overall, a smooth experience from start to finish that I highly recommend.
Kevin Keller –
The 2010 Cadillac STS ECM arrived exactly as described and was already VIN programmed, which made installation straightforward. I appreciated the professional programming service they provided, saving me a lot of hassle. Shipping was quick and reasonably priced, and the unit has been running smoothly without any issues. Overall, a reliable purchase that restored my car’s performance perfectly.