Description
2018 Buick LaCrosse 2.5L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2018 Buick LaCrosse 2.5L 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



Austin Perez –
I ordered the 12674690 ECM for my 2018 Buick LaCrosse, and I’m very impressed with the entire experience. The unit arrived quickly with free shipping, which was a nice bonus. What really stood out was the plug-and-play setup—they had it programmed to my VIN before shipping, so installation was straightforward and hassle-free. The quality of the part feels solid, and my car runs smoothly now.
Joel King –
I was really impressed with how quickly the ECM arrived after I placed my order. The unit was fully programmed to my 2018 Buick LaCrosse’s VIN, and installation was straightforward—just plug and play with no extra tuning needed. The whole process saved me a significant amount compared to dealer prices, and the team was very responsive when I had questions. Overall, a smooth experience from start to finish.
Noah Mitchell –
Fast shipping and a true plug-and-play unit that fit my 2018 Buick LaCrosse perfectly. Saved me a bundle compared to dealer prices and the installation was seamless.
Ryan Douglas –
Fast shipping and the plug-and-play setup made installing this ECM on my 2018 Buick LaCrosse a breeze. Excellent quality and service!
Patrick Moore –
I was a bit nervous about ordering an ECM online, but this product exceeded all my expectations. The unit arrived quickly with free shipping, which was a nice surprise. What really stood out was the plug-and-play setup—they had already programmed it to my VIN, so installation was straightforward and hassle-free. Throughout the process, their customer service was fantastic, promptly answering my questions and keeping me informed. My 2018 Buick LaCrosse runs perfectly now, and I couldn’t be happier with the quality and professionalism of this purchase.