Description
2004 Buick Park Avenue 3.8L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2004 Buick Park Avenue 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
Tyler Douglas –
I was a bit nervous about ordering an ECM online, but this 2004 Buick Park Avenue PCM exceeded my expectations. The programming was spot on for my VIN, so installation was straightforward with no issues. Shipping was very reasonable and arrived quicker than I thought, which was a huge plus. Throughout the process, the seller kept me updated and answered all my questions promptly, making the whole experience smooth and hassle-free. My car runs like new again, and I’m really happy with the service.
Neil Murphy –
The ECU arrived quickly with free shipping, and it was perfectly programmed for my 2004 Buick Park Avenue—plug-and-play made the install a breeze.
Great communication throughout the process, and the updated ECM worked flawlessly right out of the box.
Fast turnaround and the professional programming saved me a ton of hassle—highly recommend for anyone needing a reliable replacement.
Patrick Stewart –
Fast shipping and a perfect plug-and-play fit—this updated ECM saved me a ton compared to dealer prices. Installation was smooth and the whole process was hassle-free.
Grant Scott –
I ordered the 2004 Buick Park Avenue ECM and was really impressed with how quickly it arrived, especially since the shipping was free. The unit was already VIN programmed, so installation was straightforward and hassle-free. Their team kept me updated throughout the entire process and answered all my questions promptly, which made the experience stress-free. The car runs perfectly now, definitely worth it.