Description
2017 GMC Sierra 4.3L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2017 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
Tyler Webb –
The 2017 GMC Sierra ECM arrived quicker than I expected, which was a huge relief. Installation was straightforward since it was truly plug-and-play, and I had my truck up and running in no time. The service team was very responsive and kept me informed throughout the process. This saved me a significant amount compared to dealer prices, and I’m very pleased with the whole experience.
Trevor Lewis –
I was really impressed with how smoothly everything went from start to finish. The ECM arrived quickly, and the fact that it was already VIN programmed meant I didn’t have to deal with any complicated setup. Shipping was very reasonable, which was a nice bonus. The communication throughout the process was excellent—they kept me informed at every stage and answered my questions promptly. After installing the unit, my GMC Sierra runs like new again.
Zachary Scott –
I recently purchased the 12674472 ECM for my 2017 GMC Sierra 4.3L, and I couldn’t be happier with the entire experience. The unit arrived quickly with free shipping, which was a nice bonus. What really stood out was how professional the programming service was—they programmed the ECM specifically for my VIN, so installation was seamless and plug-and-play straight out of the box. It felt like I got a brand new truck, and everything runs perfectly now. Customer support also answered all my questions promptly, making the whole process stress-free. Highly recommend this seller for anyone needing an ECU replacement.
Gavin Little –
The ECU arrived quickly with free shipping, and it was perfectly programmed for my 2017 GMC Sierra—plug-and-play made installation a breeze.
Great communication throughout the process, and the updated ECM worked flawlessly right out of the box.
Super fast turnaround and the unit came fully VIN programmed, saving me a ton of hassle.
Shipping was really reasonable, and their programming service made the whole swap seamless and stress-free.
They answered all my questions quickly, and the repair quality exceeded my expectations on this ECM.
Nicholas Hill –
Got the 12674472 ECM for my 2017 GMC Sierra, and it arrived quickly. Plug-and-play setup was a breeze, and I saved a ton compared to dealer prices.
Max Cooper –
I recently purchased the 12674472 ECM for my 2017 GMC Sierra 4.3L, and I couldn’t be happier with the whole experience. The shipping was surprisingly fast, arriving well before I expected. Installation went smoothly since the unit was truly plug-and-play, which made the whole process stress-free. Compared to the dealer, this service saved me a significant amount of money, and the team was very professional and communicative throughout. It’s great to find a reliable option that doesn’t break the bank but still delivers excellent quality. I definitely recommend this to anyone needing an ECU replacement.
Ian Hudson –
I purchased the 12674472 ECM for my 2017 GMC Sierra 4.3L and was really impressed with how smoothly everything went. The unit arrived quickly with free shipping, which was a nice bonus. It came VIN programmed and ready to install, so I didn’t have to worry about any complicated setups. The quality of the part is top-notch and my truck runs perfectly now.