Description
2004 Buick LeSabre 3.8L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2004 Buick LeSabre 3.8L 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
Leo Smith –
I was impressed with how quickly the ECM arrived after placing my order, definitely faster than I expected. The unit was programmed for my 2004 Buick LeSabre and was truly plug-and-play, making the installation process hassle-free. Choosing this over a dealer repair saved me a significant amount of money without sacrificing quality. The team’s communication throughout the process was clear and professional, which put me at ease.
Frank Reynolds –
I was very impressed with the quality of this ECM for my 2004 Buick LeSabre. The unit arrived quickly with free shipping, which was a nice plus. The best part was how smoothly it plugged right in thanks to their professional VIN programming service—no hassle at all. Communication was clear throughout the process, and they answered all my questions promptly.
Jorge Lopez –
I was really impressed with how smooth the whole process was for my 2004 Buick LeSabre ECM replacement. The unit arrived quickly, and the fact that it came already VIN programmed made installation a breeze—plug and play just like they said. The shipping was very reasonable, which was a nice bonus since I wasn’t expecting to spend too much on getting the part delivered. The quality of the ECM feels solid, and my engine runs perfectly now with no warning lights. Overall, this was a hassle-free experience, and I’d definitely recommend their service to anyone in need of a reliable replacement.
Spencer Wallace –
I was really impressed with how smooth the whole process was from start to finish. The 2004 Buick LeSabre ECM arrived quickly, and it was already programmed to my car’s VIN, so installation was literally plug-and-play. The quality of the part itself feels top-notch, and since I didn’t have to deal with any complicated programming, it saved me a ton of time and hassle. The seller also kept me in the loop the entire time which gave me a lot of confidence in the purchase. Overall, a fantastic experience and my car runs like new again.
Leo Anderson –
Shipping was super quick, and the ECU arrived ready to plug right in. Saved me a ton compared to dealer prices and the installation went smoothly with their helpful support.
Dean Stewart –
The VIN programmed ECM arrived quickly with free shipping and worked perfectly right out of the box. Great service and smooth plug-and-play setup!