Description
2018 Chevrolet Silverado 6.2L ECM / ECU – VIN Programmed | Updated
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2018 Chevrolet Silverado 6.2L models.
Each unit is VIN-programmed, updated, and fully tested for a true plug-and-play installation with our cloning service.
Built to OEM standards for reliability, calibration accuracy, and long-term performance.
Strict Testing & Quality Assurance
Every ECU is inspected, refreshed, and verified through advanced diagnostic tools. Testing includes:
Complete communication & CAN-bus verification
Sensor input/output and signal integrity checks
Injector & ignition pulse simulation
Power, ground, and load-circuit analysis
Flash memory integrity and checksum validation
Thermal and voltage-stress testing to confirm reliability
Important Note
Some vehicles with IMMO or PATS require key programming after installation. This is normal.
For a 100% plug-and-play solution, we recommend using our full cloning service. We transfer all security data to the replacement unit.
A prepaid shipping label will be emailed to you. Allow you to mail in your original computer to us for full cloning.
If cloning is not selected, the ECU will be VIN programmed, and a key relearn will be required after installation.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566
Joel Moore –
I ordered the 12678939 ECM for my 2018 Silverado, and the entire process was smooth from start to finish. The unit arrived quickly with free shipping, which was a nice bonus. What impressed me most was the professional VIN programming service they provided, so installation was literally plug-and-play. It runs perfectly now, and the team answered all my questions promptly, making the experience hassle-free.
Gavin Page –
I was really impressed with how smoothly everything went when I ordered the ECM for my 2018 Chevrolet Silverado. The unit arrived quickly with free shipping, which was a nice bonus. What stood out most was the plug-and-play setup—they programmed the ECU to my VIN before shipping, so installation was straightforward and hassle-free. The communication from the seller was top-notch; they answered all my questions promptly and kept me updated throughout the process. After installation, my truck runs like new again, and I couldn’t be happier with the quality and service.
Hunter Gray –
Fast shipping and the VIN programming was spot on—my Silverado runs like new again. The communication was great throughout the process.