Description
2012 GMC Sierra 6.0L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2012 GMC Sierra 6.0L 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




John Reynolds –
I was really impressed with how quickly this 2012 GMC Sierra ECM arrived—shipping was much faster than I expected. The unit came fully VIN programmed and ready to go, so installation was literally plug-and-play. I was nervous about doing this myself, but the process went smoothly thanks to the clear instructions and helpful communication from the seller. Compared to the dealer quote I got, this purchase saved me a ton of money, which made the whole experience even better. Overall, a hassle-free fix that got my truck running like new again.
Jeremy Reynolds –
I received the 2012 GMC Sierra 6.0L ECM fully programmed and ready to go, and the shipping was impressively fast. Installation was straightforward since the unit was truly plug-and-play, which made the whole process hassle-free. The team’s communication was clear and professional throughout, and I ended up saving a significant amount compared to dealer prices. Overall, a smooth experience that got my truck back on the road quickly.
Benjamin Jenkins –
I purchased the 2012 GMC Sierra 6.0L ECM fully VIN programmed and was impressed by how seamless the plug-and-play setup was. The quality of the unit is top-notch, and it fired right up without any issues. Shipping was very reasonable, which was a nice bonus. Customer support kept me informed throughout the process, answering all my questions quickly.
Jeremy Bates –
Fast shipping and the plug-and-play unit worked perfectly—saved me a ton compared to dealer prices. Installation was hassle-free and the communication was spot-on.
Cole Anderson –
Received my 2012 GMC Sierra ECM quickly with free shipping, and it worked perfectly right out of the box—no hassle at all.
The programming service was spot on, they had my 6.0L PCM ready and VIN matched in no time, making the install a breeze.
Great communication throughout the process, they answered all my questions promptly and kept me in the loop until my Sierra’s ECM was ready.
Super fast turnaround on the VIN programmed ECU for my 2012 GMC, and the quality is top notch.
Was impressed with how easy the plug-and-play setup was—shipped fast and arrived exactly as promised for my 6.0L Sierra.