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
Edward Edwards –
Got my 2009 Sierra ECM perfectly VIN programmed with quick shipping and flawless plug-and-play installation—exactly what I needed. Communication was spot on, and the whole process was seamless.
Chris Morris –
Fast shipping and the unit was truly plug-and-play. Saved me a ton compared to dealer prices, plus installation was hassle-free.
John Reynolds –
I purchased the 12625455 ECM for my 2009 GMC Sierra, and the whole process was smooth from start to finish. The unit came VIN programmed and ready to install, which saved me a lot of hassle. Shipping was surprisingly quick and very reasonable, and the quality of the ECU is top-notch. I’m really impressed with how well it’s been working so far.
Patrick Miller –
I was really impressed with how smooth the entire process went when I ordered this ECM for my 2009 GMC Sierra. The unit arrived quickly with free shipping, which was a nice bonus. What stood out the most was the plug-and-play setup; it saved me a ton of hassle since it was already VIN programmed. I had a few questions before purchasing, and their customer service team responded promptly and clearly, which gave me confidence. After installing it, my truck ran better than it had in years. Highly recommend!
Andrew Bates –
I was really impressed with how quickly this ECM arrived—shipping was faster than I expected. The unit was completely plug-and-play, making installation a breeze without any extra programming needed on my end. Compared to the dealer’s price, this saved me a significant amount of money, and the customer support was very responsive when I had questions. Overall, a smooth experience from start to finish.