Description
2018 GMC Sierra 6.2L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2018 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



Samuel King –
Shipping was super fast and the plug-and-play unit worked perfectly—saved me a ton compared to dealership prices. Installation was smooth and the communication was spot on.
Robert Cox –
The updated ECM arrived quickly with free shipping and was perfectly programmed for my 2018 GMC Sierra—super easy plug-and-play setup.
Great communication throughout the process, and the ECU programming was done professionally with a fast turnaround; highly recommend!
Jack Collins –
I recently purchased the 2018 GMC Sierra 6.2L ECM, and I’m impressed with how smoothly everything went. The unit arrived quickly with free shipping, which was a nice bonus. They handled the VIN programming professionally, and the plug-and-play setup made installation straightforward. Overall, the quality of the ECM matches perfectly with my truck’s needs.