Description
2012 GMC Savana 5.3L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2012 GMC Savana 5.3L models.
Each unit is VIN-programmed, updated, and fully tested for a true plug-and-play installation with no dealer visit required.
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:
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Complete communication & CAN-bus verification
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Sensor input/output and signal integrity checks
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Injector & ignition pulse simulation
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Power, ground, and load-circuit analysis
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Flash memory integrity and checksum validation
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Thermal and voltage-stress testing to confirm reliability
This ensures a fully functional, reliable, plug-and-play module you can install with confidence.
Important Note
Some vehicles equipped with IMMO (Immobilizer) or PATS (Passive Anti-Theft System) may require additional key programming after installation. This is normal for models where security data must be synchronized with the vehicle’s body control system.
For a 100% plug-and-play solution with no relearns, no key programming, and no compatibility issues, we recommend our ECU Cloning Service, which transfers all original security, immobilizer, and configuration data directly into the replacement unit.
Contact Us
Email: info@fixecm.com
Phone: Local: 647-247-8555 | Toll-Free: 1-800-915-5566




Isaac James –
I was a bit nervous about ordering a replacement ECM for my 2012 GMC Savana, but this unit exceeded my expectations. The VIN programming meant it was ready to go right out of the box, which saved me a ton of hassle. Installation was straightforward—literally plug and play, no complicated setup needed. It fired up perfectly on the first try, and my engine is running smoothly again. Plus, the shipping was surprisingly quick, so I didn’t have to wait long to get back on the road. Overall, a solid buy that restored my van without any headaches.
Luke Ward –
I was really impressed with how straightforward the install was on this 2012 GMC Savana 5.3L ECM. It came VIN programmed and ready to go, which saved me a ton of hassle. The shipping was surprisingly quick, and the unit worked flawlessly right out of the box. It’s a relief to have everything plug and play without needing extra tuning or adjustments.
Scott Johnson –
The ECM arrived quickly and installed effortlessly—had my Savana running like new in no time. Super reliable and exactly as described!