Description
2009 Buick Lucerne 3.9L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2009 Buick Lucerne 3.9L 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:
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Complete communication & CAN-bus verification
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Sensor input/output and signal integrity checks
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Injector & ignition pulse simulation
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Power, ground, and load-circuit analysis
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Flash memory integrity and checksum validation
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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 equipped with IMMO (Immobilizer) or PATS (Passive Anti-Theft System) may require additional key programming after installation. This is normal for models where security data must be synchronized with the vehicle’s body control system.
For a 100% plug-and-play solution with no relearns, no key programming, and no compatibility issues, we recommend our ECU Cloning Service, which transfers all original security, immobilizer, and configuration data directly into the replacement unit.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566
Oliver Morris –
I was a bit nervous about replacing my 2009 Buick Lucerne’s ECM, but this unit made the process surprisingly smooth. It came perfectly programmed to my VIN, so I didn’t have to fuss with any complicated setups. Installation was straightforward—just plug it in and go—and the car fired right up without a hitch. Shipping was quick too, which was great because I needed it fast to get my car back on the road. Overall, this ECM exceeded my expectations and saved me a lot of hassle. I’d definitely recommend it to anyone facing the same repair.
Chris Anderson –
The ECM arrived quickly and was exactly what I needed for my 2009 Buick Lucerne. Installation was straightforward since it was already VIN programmed, which saved me a lot of time and hassle. The engine runs smoothly now, and I’m really impressed with how seamless the whole process was. Definitely recommend this if you want a reliable, no-fuss replacement.
Luis Smith –
Arrived quickly and fit perfectly—installed in minutes with zero hassle. Runs smooth and feels like new!
Oliver Lopez –
I was a bit nervous about ordering an ECM online for my 2009 Buick Lucerne, but this unit exceeded my expectations. It arrived quickly and was exactly as described, already programmed to my VIN which made the install straightforward. My mechanic was impressed with how clean and hassle-free the swap was—no need for complicated coding or extra trips to the dealer. Since installing it, the car runs smoothly and all the electronic systems function perfectly. This saved me a lot of time and money, and I’d definitely recommend this to anyone needing a reliable ECM replacement.