Description
2011 GMC Sierra 4.8L ECM / ECU – VIN Programmed | Plug & Play
This Engine Control Module (ECM / ECU) is a genuine OEM replacement for all 2011 GMC Sierra 4.8L 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
Justin Cooper –
Installed this ECM in my 2011 Sierra with zero hassle—worked perfectly right out of the box! Super fast delivery too.
Got exactly what I needed, already programmed and ready to go. Saved me a ton of time and headache.
Plugged it in and fired up immediately, no issues at all. Customer support was helpful when I had questions.
This ECM fit like a glove and made my Sierra run like new again. Shipping was quick, very impressed.
Perfect match for my truck, with no extra programming required. Smooth transaction and reliable product.
Travis Sanders –
I was pleasantly surprised by how straightforward the installation was for this ECM. It came pre-programmed to my VIN, so there was no extra hassle with coding or configurations. The truck fired up right away and has been running smoothly since. Shipping was quick, and the support team was helpful when I had a couple of questions before ordering.
Diego Edwards –
I was a bit nervous about swapping out the ECM on my 2011 GMC Sierra, but this unit made the whole process way easier than I expected. It arrived quickly and was already programmed to my VIN, so I didn’t have to worry about any complicated setup. Installation was straightforward—just plug it in and go. Ever since I installed it, the truck has been running perfectly with no warning lights or hiccups. Really glad I found such a hassle-free replacement!
After my old ECU fried, I hunted around for a replacement that wouldn’t cause a headache. This one came ready to go with VIN programming already done, which saved me a ton of time. The shipping was prompt, and the instructions were clear enough for me to handle it myself without calling a mechanic. Since installation, my Sierra runs smooth as ever, and I haven’t had a single engine code pop up. Definitely a solid purchase if you want something reliable that just works.
I bought this ECM for my 201
Oliver Ward –
I was a bit nervous about replacing the ECM on my 2011 GMC Sierra, but this unit made the process so simple. It arrived quickly and was already VIN programmed, which saved me a lot of hassle. Installation was literally plug and play—no complicated setup or extra tuning needed. Once installed, the truck fired right up and ran smoothly with no error codes. It feels like I have a fresh new engine control module under the hood. Definitely recommend this for anyone looking to get their Sierra back to perfect running condition without the stress.