Description
2009 GMC Sierra 4.3L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2009 GMC Sierra 4.3L 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
Colin Edwards –
Received the 2009 GMC Sierra ECM quickly with free shipping, and it was perfectly programmed for my VIN—installed with zero hassle.
David Ward –
I was really impressed with how quickly this ECM arrived after I placed my order—it came faster than I expected. Installation was a breeze since the unit was already VIN programmed and truly plug-and-play, which saved me a ton of hassle. Compared to the dealer’s price, this was such a money saver without compromising quality. The communication with the seller was clear and helpful, making the whole experience smooth from start to finish. My 2009 GMC Sierra is running perfectly now, so I couldn’t be happier with this purchase.
Mark Hill –
I was really impressed with how smooth the entire process was for this 2009 GMC Sierra ECM. The unit arrived quickly, and the best part was that it came VIN programmed and ready to go—no additional hassle on my end. I had a few questions before ordering, and their customer service responded promptly with clear answers. Installation was straightforward, and my truck has been running perfectly since. Overall, a great experience with fast shipping and a quality product.
Brian Campbell –
Shipping was super fast and the ECM was truly plug-and-play, saving me a ton compared to dealer prices. Installation went smoothly with great communication throughout.
Dylan Stewart –
I was really impressed with how smoothly everything went. The ECU arrived quickly with free shipping, and it was already VIN programmed, so installation was a breeze. The quality of the part seems excellent, and I appreciated the seller keeping me informed throughout the process. Highly recommend if you need a reliable replacement for your 2009 GMC Sierra.
Robert Collins –
I received the 12594750 ECM for my 2009 GMC Sierra really quickly, and it was completely plug-and-play which made the installation effortless. The unit came VIN programmed, so I didn’t have to worry about any additional setup. Compared to dealer prices, this service saved me a significant amount of money, and the customer support was very responsive when I had a couple of questions. Overall, a smooth experience from start to finish.