Is your 2010 Silverado 3500 running rough, stalling unexpectedly, or showing a persistent check engine light? These are classic signs of a failing Engine Control Module (ECM), the central computer of your truck’s powertrain. A faulty ECM can lead to poor fuel economy, hesitation, and even a no-start condition, leaving you stranded. Don’t let a failing computer dictate your truck’s reliability. This direct-replacement ECM is the definitive solution to restore your vehicle’s performance and peace of mind.
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take the guesswork and expensive dealership visits out of the equation. Upon purchase, simply provide us with your vehicle’s VIN. Our technicians will then program the module with the latest official GM software specific to your truck. This ensures perfect communication between all vehicle systems and optimal engine performance from the moment you install it. This unit is a direct replacement for part numbers 12633238 and 12633055, guaranteeing a perfect fit and function.
Symptoms of a Failing 2010 Silverado 3500 ECM
- ✔ Persistent Check Engine Light (CEL) on your dashboard.
- ✔ Engine misfires, stumbling, or hesitation during acceleration.
- ✔ Unexplained decrease in fuel efficiency.
- ✔ The engine cranks but refuses to start.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Intermittent stalling, especially when idling or coming to a stop.
- ✔ Communication errors with diagnostic scan tools.
Replacing your faulty module with this pre-programmed unit is the most effective way to resolve these issues and get your truck operating as it should. The installation is straightforward for anyone with basic mechanical skills. Simply disconnect the battery, locate the old ECM in the engine bay, unplug the connectors, unbolt it, and install the new one in its place. Once the new module is connected and the battery is reconnected, your truck is ready to go—no further programming required.
Frequently Asked Questions
Do I need to get this ECM programmed by a dealer?
Absolutely not. We handle all the programming for you before shipment. Just provide your vehicle’s VIN during or after checkout, and we will load the latest GM software specific to your truck. It will arrive ready for installation.
What information do you need from me?
We only need your 17-digit Vehicle Identification Number (VIN). This allows us to program the module with the correct software and calibrations for your truck’s specific engine, transmission, and options.
Is this part difficult to install?
The physical installation is typically straightforward. It involves disconnecting the battery, unplugging the electrical connectors from the old module, removing a few bolts, and swapping the unit. However, if you are not comfortable working on your vehicle, we always recommend professional installation.
How can I be sure my ECM is the problem?
While the symptoms listed are strong indicators of a failing ECM, it’s always best to have a proper diagnosis performed by a qualified mechanic with a professional scan tool. This ensures you are replacing the correct part and not overlooking other potential issues like a faulty sensor or wiring problem.
Will this fit other GM trucks and cars?
Yes, this ECM is compatible with a wide range of GM vehicles from roughly 2010-2017, including various Sierra, Yukon, Escalade, Express, Savana, and Camaro models. Please refer to the detailed fitment list and verify your original part number (12633238 or 12633055) to ensure compatibility.