Description
2010 Cadillac STS 3.6L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2010 Cadillac STS 3.6L models.
Each unit is VIN-programmed, updated, and fully tested for a true plug-and-play installation with no dealer visit required.
Built to OEM standards for reliability, calibration accuracy, and long-term performance.
Strict Testing & Quality Assurance
Every ECU is inspected, refreshed, and verified through advanced diagnostic tools. Testing includes:
Complete communication & CAN-bus verification
Sensor input/output and signal integrity checks
Injector & ignition pulse simulation
Power, ground, and load-circuit analysis
Flash memory integrity and checksum validation
Thermal and voltage-stress testing to confirm reliability
This ensures a fully functional, reliable, plug-and-play module you can install with confidence.
Important Note
Some vehicles with IMMO or PATS may require key programming after installation. This is normal.
For a 100% plug-and-play solution with no relearns, your original ECU must be sent in for cloning. We transfer all security data to the replacement unit.
👉Add the cloning service as a bundle at checkout — $200 CAD / $140 USD
A prepaid shipping label will be emailed to you.
If cloning is not selected, the ECU will be VIN programmed, and a key relearn will be required after installation.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566
Ryan King –
The ECM arrived quickly and installed effortlessly—my Cadillac runs flawlessly now. Highly recommend for anyone needing a reliable replacement!
Aiden Turner –
This ECM/ECU arrived quickly and was exactly as described, VIN programmed and ready to go. Installation was straightforward, and my 2010 Cadillac STS fired up without any issues. I appreciated that it was truly plug-and-play, saving me a ton of hassle. The quality and performance feel just like the original unit.
Owen Ward –
I was a bit nervous about replacing the ECM on my 2010 Cadillac STS, but this unit made the whole process surprisingly smooth. It arrived quickly, and right out of the box, it was clear everything was set up properly with the VIN programmed. Installation was truly plug and play—I didn’t have to mess with any complicated wiring or coding. Once installed, my car fired up perfectly, and all the systems ran as if nothing had been changed. It’s been a week now with no issues at all, and I’m really glad I found such a reliable solution.