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



Liam Hudson –
Fast shipping and the ECU arrived perfectly programmed for my 2018 Buick LaCrosse—plug-and-play was exactly as promised. Communication was clear and they answered all my questions quickly.
Lucas Gonzalez –
The ECM arrived quickly and was truly plug-and-play, saving me a ton compared to dealer pricing. Installation was seamless, and their communication made the whole process easy.
Jorge Morris –
I recently purchased the 2018 Buick LaCrosse ECM from this seller and was impressed by their professional programming service—my unit arrived VIN programmed and ready to install right out of the box. The shipping was very reasonable and the package arrived sooner than expected. Their team kept me informed throughout the process and answered all my questions promptly, which made the entire experience smooth and hassle-free. The ECM itself works perfectly, and I couldn’t be happier with the quality and support.
Tyler Turner –
I was a bit nervous ordering an ECM online, but this purchase exceeded my expectations. The ECU arrived quickly with free shipping, which was a nice bonus. What impressed me most was the plug-and-play setup—no need to hassle with complicated programming on my end. The unit worked perfectly with my 2018 Buick LaCrosse 2.5L right out of the box. Overall, a smooth and hassle-free experience from start to finish.
Jacob Payne –
I ordered the 12676683 ECM for my 2018 Buick LaCrosse and was impressed by how quickly it arrived. The unit was fully programmed to my VIN and fit perfectly, making installation straightforward and hassle-free. This saved me a significant amount compared to dealer prices, and the customer support was very responsive and helpful throughout the process. Overall, a smooth experience from start to finish.