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 Hill –
I was a bit nervous about replacing the ECM on my 2018 Silverado, but this unit came VIN programmed and ready to install, which made the whole process way easier than I expected. The plug-and-play setup saved me a ton of time, and the truck started up immediately with no issues. Shipping was free and arrived sooner than I thought, which was a big help since I needed my truck back on the road quickly. Their customer service was also top-notch—they answered my questions promptly and walked me through the installation steps. Overall, a flawless experience that got me back to work without a hitch.
Logan Green –
The VIN programmed ECM arrived quickly with free shipping and was a perfect plug-and-play fit for my Silverado. Customer support was responsive and helped me every step of the way.
Keith Murphy –
I recently purchased the 12682376 ECM for my 2018 Silverado, and I’m really impressed with the whole experience. The unit arrived quickly with free shipping, which was a nice bonus. What stood out most was how smoothly everything was programmed for my VIN before it even showed up—plug-and-play made installation a breeze. The communication from the seller was clear and prompt, so I never felt left in the dark. Since swapping it in, my truck runs better than ever, and I’m very happy with the quality of the repair.
Luis Brooks –
I purchased the 12682376 ECM for my 2018 Silverado and was impressed by how smooth the entire process was. The unit came VIN programmed, so installation was basically plug-and-play, which saved me a lot of time and hassle. Shipping was very reasonable and arrived right on schedule. Their team also answered all my questions promptly, making me feel confident throughout the purchase.