Description
2017 GMC Sierra 6.2L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2017 GMC Sierra 6.2L 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



Anthony Bell –
Received the 12704476 ECM quickly, and it was completely plug-and-play. Saved me a bundle compared to dealer prices, and installation went without a hitch.
Fast shipping and the unit worked right out of the box for my 2017 GMC Sierra. This saved me so much cash versus going through the dealership, plus the customer service was really helpful.
Super quick delivery and the ECM was perfectly programmed for my truck. Plugging it in was seamless, and the cost savings over dealer repair was huge. Highly recommend.
I was impressed with the speedy shipping and how the ECM was ready to go on arrival. Installation was smooth, and the price beat the dealership by a mile. Great experience all around.
The part came fast and was a direct fit for my 2017 Sierra. Plug-and-play made installation easy, and I definitely saved big bucks compared to dealer service. Communication was spot on too.
Liam Wright –
I ordered the 12704476 ECM for my 2017 GMC Sierra and was really impressed with the entire experience. The unit came VIN programmed and ready to go, which made installation straightforward and hassle-free. Shipping was free and arrived quicker than I expected. The seller also stayed in touch throughout the process, promptly answering my questions and keeping me informed at every step.
Dominic Morris –
The ECU arrived quickly with free shipping and was perfectly programmed for my 2017 GMC Sierra, making installation a breeze. Customer support was very responsive and helped answer all my questions promptly.
Jack Sanders –
I was really impressed with how quickly this ECM arrived after I placed the order. The unit was exactly as described and plugged right into my 2017 GMC Sierra with no issues, making the installation hassle-free. The VIN programming was spot on, so everything functioned perfectly from the start. Choosing this service saved me a significant amount compared to going through the dealership, and the communication throughout the process was clear and professional.