Description
2011 GMC Terrain 3.0L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2011 GMC Terrain 3.0L 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
Ethan Morris –
Perfect fit for my 2011 GMC Terrain, arrived quickly and worked right out of the box with zero hassle. Super happy with the smooth install!
Had a minor question and their tech support was super helpful. The ECM was programmed to my VIN and plugged in easily—definitely recommend!
Plugged it in and my SUV fired right up, no extra tuning needed. Fast shipping and exactly as described, couldn’t ask for more.
Quick delivery and flawless performance. This ECM made replacing my old unit a breeze on my Terrain!
The VIN programming meant no headaches—just installed and drove away. Solid product and speedy service all around.