Description
2012 Chevrolet Silverado 6.6L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2012 Chevrolet Silverado 6.6L 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



Luke Hayes –
The VIN programming was flawless, and they kept me updated throughout the entire process. Shipping was fast and reasonable too.
Mason Wright –
I needed a replacement ECM for my 2012 Silverado and this unit worked perfectly. Shipping was quick, and the module arrived already VIN programmed, which made installation hassle-free. It was truly plug-and-play with no issues, and the price was much more affordable compared to dealership quotes. The seller was responsive and professional throughout the process, making the whole experience smooth and stress-free.
David Sanders –
Arrived quickly and worked perfectly right out of the box—saved me a ton versus dealer pricing. Great communication and super smooth install!