Description
2012 Buick LaCrosse 2.4L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2012 Buick LaCrosse 2.4L 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
Brian Sanders –
Super quick delivery and the ECU fit perfectly—had my LaCrosse running smoothly in no time! Couldn’t be happier with how seamless the install was.
Daniel Bailey –
The ECM arrived quickly and was perfectly programmed for my 2012 Buick LaCrosse 2.4L, making installation a breeze. I appreciated how everything was truly plug-and-play, so no complicated setup was needed. The engine runs smoothly now, and the car’s performance feels like new again. Overall, very satisfied with the quality and service provided.
Andrew Howard –
I recently purchased the VIN programmed ECM for my 2012 Buick LaCrosse, and I couldn’t be happier with how smoothly everything went. The unit arrived quickly, and the plug-and-play setup was exactly as advertised—no headaches or complicated wiring. After installation, my car fired up right away, and all the systems functioned perfectly. It’s clear that this part was professionally programmed and tested, saving me a ton of time and frustration. Overall, this was a seamless experience, and I’ll definitely turn to this seller again if I ever need another replacement.