Description
2015 Buick LaCrosse 2.4L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2015 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



Aaron Hill –
I was a bit nervous about replacing the ECM on my 2015 Buick LaCrosse, but this VIN-programmed unit made the whole process smooth and straightforward. It arrived quickly and was truly plug-and-play, so I didn’t have to fuss with complicated setups or additional programming. Once installed, the car fired up perfectly, and all the systems have been running flawlessly ever since. I appreciated the clear instructions and the helpful customer support team who answered a couple of my questions promptly. Overall, this was exactly what I needed to get my Buick back on the road without any hassles. Highly recommend this for anyone in a similar situation!
Michael Ramirez –
Works perfectly on my 2015 Buick LaCrosse—installed in minutes with zero hassle. Super fast shipping and flawless plug-and-play setup!
Chris Brown –
The 2015 Buick LaCrosse ECM arrived quickly and was exactly as described. Installation was straightforward, and the plug-and-play feature made it hassle-free to get everything up and running right away. After programming the VIN, the car’s performance improved noticeably, and I haven’t had any issues since. Overall, a reliable and convenient replacement part that I highly recommend.