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



Owen Anderson –
Super fast shipping and the unit was truly plug-and-play. Great communication and saved me a ton versus the dealer price.
Bruce Keller –
I was really impressed with how smoothly everything went with my purchase of the 2018 Buick LaCrosse ECM. The unit arrived quickly and was already VIN programmed, so installation was a breeze—no need for extra trips to the shop. The seller kept me informed at every step, answering my questions promptly and making sure I knew when to expect delivery. Shipping was fast and reasonably priced, which was a big plus. Since swapping in this updated ECM, my car runs like new again. Definitely recommend this service to anyone needing a reliable replacement.
Miguel Little –
I was impressed with how smoothly this ECM arrived and was ready to install right away. The VIN programming service they provided meant I didn’t have to worry about compatibility, which saved me a lot of hassle. Shipping was surprisingly quick and free, so I got the part without any extra costs. I had a couple of questions before ordering, and their team responded promptly and clearly, making the whole process stress-free. Overall, the quality of the unit is excellent, and my 2018 Buick LaCrosse runs like new again.
Kyle Scott –
I was really impressed with how quickly this ECM arrived—shipping was much faster than I expected. The unit came fully programmed for my 2018 Buick LaCrosse, and the installation was surprisingly straightforward, just plug-and-play with no hassles. I was worried about the cost at first, but this solution saved me hundreds compared to getting it fixed at the dealer. The communication throughout the process was clear and professional, which made me feel confident about the purchase. Overall, a smooth experience that got my car back on the road in no time.
Kyle Kelly –
I purchased the 12681387 ECM for my 2018 Buick LaCrosse, and the entire experience was seamless. The unit arrived quickly with free shipping, which was a nice bonus. What impressed me most was their professional programming service—my VIN was programmed perfectly before it shipped, so installation was truly plug-and-play. Communication was also excellent; they kept me informed throughout the process, which gave me confidence in my purchase.
Diego Hall –
I’m really happy with this ECM for my 2018 Buick LaCrosse. The shipping arrived much faster than I expected, and the unit was truly plug-and-play, making installation straightforward. Choosing this option saved me a significant amount compared to dealer prices, and the communication from the seller was clear and helpful throughout. Overall, a smooth experience that I’d recommend to anyone needing a reliable replacement.
James King –
The programmed ECM arrived quickly with free shipping, and it worked perfectly right out of the box—highly recommend.
Excellent communication throughout the process, and the plug-and-play setup made installation a breeze for my 2018 Buick LaCrosse.
Fast turnaround and professional programming service got my car back on the road in no time, great quality product.