Description
2004 Buick Rendezvous 3.6L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2004 Buick Rendezvous 3.6L 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
Travis James –
I was really impressed with the quality of this ECM for my 2004 Buick Rendezvous. The unit arrived quickly with free shipping, which was a nice bonus. They also provided professional VIN programming, so it was essentially plug-and-play once I got it installed. Their communication was excellent—they kept me updated throughout the process and answered all my questions promptly.
Frank Jenkins –
The updated ECM arrived quickly with free shipping and was perfectly programmed for my 2004 Buick Rendezvous—super smooth plug-and-play experience.
Logan Bates –
I was really impressed with how quickly the 2004 Buick Rendezvous ECM arrived—it was shipped out fast and arrived right on time. Installation was straightforward since the unit was plug-and-play, making the whole process hassle-free. The VIN programming was spot-on, and their professional service saved me a significant amount compared to dealer prices. They also kept me updated throughout, which made the whole experience very reassuring.
Nathan Douglas –
I was really impressed with how smooth the whole process went when I ordered the 2004 Buick Rendezvous ECM. The unit arrived quickly thanks to their reasonable shipping rates, and it was already VIN programmed, which saved me a ton of hassle. I had a few questions about installation, and their customer service responded promptly and clearly, making me feel confident about the purchase. Once installed, my vehicle ran like new again with no warning lights or glitches. Definitely a solid product and great experience overall.
Jose Walker –
I needed a replacement ECM for my 2004 Buick Rendezvous, and this unit arrived exactly as described. What really impressed me was how it came VIN programmed and ready to install—no headaches or extra trips to a mechanic. The shipping was surprisingly quick and affordable, which made the whole process stress-free. When I had a couple of questions about installation, their team responded promptly and clearly, which I appreciated. After swapping it in, my vehicle runs smoother than it has in months. Definitely recommend this seller for anyone needing a reliable ECM.
Kevin Peterson –
I was really impressed with how quickly this ECM arrived at my door—definitely faster than I expected. When I got it installed, it was literally plug-and-play, which made the whole process so much smoother than I feared. The fact that it came VIN programmed saved me a lot of headache and extra trips. Compared to the dealer’s insane prices, this service was a total bargain and worked perfectly right out of the box. The communication throughout was clear and professional, which gave me confidence I was in good hands. Overall, this purchase made fixing my Buick Rendezvous a stress-free experience.
Russell Kelly –
Fast shipping and a plug-and-play unit made installation a breeze. This saved me a ton compared to dealer prices—highly recommend!