Description
2014 GMC Sierra 4.3L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2014 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




Eric Perez –
Fast shipping and the plug-and-play 2014 GMC Sierra ECM saved me a ton compared to dealer pricing. Installation was straightforward and the customer support was top-notch.
Spencer Brown –
I was a bit nervous about ordering an ECM online for my 2014 GMC Sierra, but this company made the process really smooth. The unit arrived quickly with free shipping, which was a nice bonus. They also offer professional VIN programming, so I didn’t have to worry about compatibility or setup. Once installed, my truck fired up without any issues, and it runs just like new. Their customer service was great too—they kept me informed every step of the way, which gave me a lot of confidence in the purchase. Overall, a solid experience from start to finish.
Lucas Little –
I was really impressed with how smoothly everything went when I ordered this ECM for my 2014 GMC Sierra. The unit arrived quickly with free shipping, which was a nice bonus. What stood out most was the professional VIN programming service they provided—once installed, the truck fired right up with no issues. They also kept me in the loop throughout the entire process, answering my questions promptly and making me feel confident about my purchase. Overall, a hassle-free experience that got my truck back on the road fast.
Justin Webb –
I ordered the 12692067 ECM for my 2014 GMC Sierra, and the whole process was smooth from start to finish. The unit arrived quickly with free shipping, which was a nice bonus. They provided professional VIN programming, so it was ready to install right out of the box. Communication was spot on as well—they kept me informed every step of the way, which gave me confidence in the purchase.
Max Murphy –
I was really impressed with how quickly the ECM arrived after I placed my order, and it was literally plug-and-play once I got it in. The whole process was straightforward, and the team’s communication kept me informed from start to finish. Choosing this option saved me a ton compared to the dealer’s quote, and the installation went smoothly without any issues. Highly recommend for anyone needing a reliable replacement unit.
Joel Graham –
The ECM arrived quickly with free shipping, and the plug-and-play setup was seamless—highly recommend for anyone needing a reliable replacement.