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
Dominic Payne –
I purchased the 12704476 ECM for my 2017 GMC Sierra and was really impressed with the seamless plug-and-play setup. It arrived quickly with free shipping, which was a nice bonus. The unit was VIN programmed and worked perfectly right out of the box, saving me a lot of hassle. Customer service was also responsive and answered my questions promptly, making the entire process smooth.
Jeremy Bell –
Fast shipping and a plug-and-play unit made installation a breeze. This saved me a ton compared to dealer prices and the service was top-notch.
Jordan Kelly –
Great quality ECM for my 2017 Sierra, and the free shipping was a nice bonus—arrived quicker than expected.
The VIN programmed ECM worked perfectly out of the box, and their communication was spot on throughout the process.
Really impressed with the plug-and-play setup and how fast they had it ready for me.
Fast turnaround and the ECM has been flawless so far; they answered all my questions promptly too.
Excellent repair quality and very reasonable shipping costs made this a hassle-free purchase.
Joel Tucker –
I needed a replacement ECM for my 2017 GMC Sierra, and this unit fit perfectly with the VIN programming already done. The plug-and-play setup made installation straightforward, and I was back on the road in no time. Shipping was surprisingly quick and didn’t cost an arm and a leg, which was a nice bonus. I also appreciated how they kept me informed throughout the process, answering my questions promptly. Overall, a smooth experience and a quality part that works exactly as expected.
Adrian Johnson –
The 2017 GMC Sierra ECM arrived much quicker than I anticipated, which was a huge relief. Installation was straightforward since the unit was already programmed to my VIN and truly plug-and-play. This service ended up saving me a ton compared to dealer prices, and their updates ensured everything ran perfectly. Great communication throughout made the whole process stress-free.