Description
2018 GMC Sierra 6.0L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2018 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



Henry Wallace –
I had some trouble with my 2018 GMC Sierra’s ECM, and this replacement unit arrived ready to go thanks to the VIN programming service they offer. The whole process was seamless because the ECU was plug-and-play, which saved me a lot of time and hassle. Shipping was surprisingly quick and didn’t cost a fortune either. Their team was very responsive when I had questions, and they kept me informed throughout the process. Overall, the quality of the part is excellent, and my truck runs smoother than before. Highly recommend this seller if you need a reliable replacement.
Zachary Hill –
I was really impressed with how quickly this ECM arrived—shipping was much faster than I expected. The unit was truly plug-and-play, making installation straightforward without any headaches. This purchase saved me a significant amount compared to the dealer’s price, and the customer service was responsive and professional throughout. Overall, a smooth experience that got my 2018 GMC Sierra back on the road without delay.
David Morris –
I was pleasantly surprised by how smooth the entire process was. The 2018 GMC Sierra 6.0L ECM arrived quickly with free shipping, and it was already VIN programmed, so installation was straightforward. The plug-and-play setup saved me a lot of hassle, and my truck started right up without any issues. I also appreciated the team’s quick responses when I had a couple of questions before purchase, which gave me confidence in their service. Overall, great quality and a seamless experience—I’d definitely order from them again.
Benjamin Sanders –
Fast shipping and a plug-and-play unit made installation a breeze, saving me a ton compared to dealer prices. The communication was clear, and everything worked perfectly right out of the box.
Robert Murray –
Received my programmed ECM quickly with free shipping, and it fit perfectly—truck runs like new again!
Noah Mitchell –
I was really impressed with how smooth the whole process was from ordering to delivery. The ECM came VIN programmed and ready to install, which saved me a ton of hassle. Shipping was fast and affordable, and the quality of the unit is top-notch. They also kept me updated throughout the entire process, which gave me confidence in my purchase.