Get Your Chevy Back on the Road, Fast.
Is your Chevrolet Cruze, Sonic, or Aveo running rough, stalling, or showing a persistent check engine light? A failing Engine Control Module (ECM) can be the source of countless frustrating and hard-to-diagnose issues. It’s the brain of your engine, and when it falters, everything from fuel economy to starting reliability is compromised. This isn’t just an inconvenience; it’s a problem that needs a reliable solution. Forget the exorbitant quotes and scheduling headaches at the dealership. We provide a direct, dependable, and cost-effective fix that gets you back behind the wheel with confidence.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a faulty ECM is the likely culprit:
- Persistent Check Engine Light (CEL) with various trouble codes
- Engine stalling, misfiring, or running erratically
- Noticeable decrease in fuel efficiency
- Difficulty starting the vehicle, or failure to start at all
- Communication errors with diagnostic scan tools (U-codes)
- Problems with automatic transmission shifting
This unit is your definitive solution. We take a genuine GM ECM and flash it with the latest, most stable software update specifically for your vehicle’s VIN. This process ensures perfect compatibility and restores your engine’s performance to factory specifications. This is the most reliable way to solve those nagging electronic issues for good. By ordering our Programmed 2011-2012 Cruze ECM, you are choosing a seamless repair process.
Features & Tangible Benefits
- ✔ VIN-Specific Programming: We flash the module with your vehicle’s exact VIN, ensuring it works perfectly right out of the box. No extra programming or dealer visits are required.
- ✔ Latest GM Software Updates: Your ECM will be loaded with the newest software from General Motors, correcting common factory bugs and optimizing performance and fuel economy.
- ✔ Plug-and-Play Installation: Once you receive the part, installation is straightforward. Simply disconnect the battery, swap the modules, and reconnect. Your car is ready to go.
- ✔ Broad Compatibility: This module is a direct replacement for multiple part numbers, including 12679199, 12642927, 12636386, 12621466, and 12630789.
- ✔ Cost-Effective Repair: Avoid the high labor costs and markups of a dealership service department. This is a smart, budget-friendly solution for a critical repair.
- ✔ One-Year Replacement Coverage: This unit is backed by our one-year replacement warranty, giving you complete peace of mind with your purchase.
An Expert’s Note on ECM Replacement
“I’ve seen countless vehicle owners chase phantom issues, replacing sensors and spark plugs, only to find the root cause was the ECM all along. A common scenario is a Cruze that develops a random misfire that no one can seem to fix. The owner spends hundreds on diagnostics and parts. The real fix is often a properly functioning, correctly programmed ECM. The value of receiving a pre-programmed module cannot be overstated. It transforms a complex, multi-step repair that often requires a dealership into a simple component swap you can do in your own driveway. This Programmed 2011-2012 Cruze ECM is more than a part; it’s a complete, hassle-free solution.”
Complete Fitment Guide
This ECM is a confirmed fit for the following vehicles and engine options:
- CHEVROLET CRUZE: 2011-2012 (1.8L Engine)
- CHEVROLET AVEO: 2009-2011
- CHEVROLET SPARK: 2013
- CHEVROLET TRAX: 2013-2014 (1.8L Engine)
- CHEVROLET SONIC: 2012 (1.8L Engine)
- PONTIAC G3: 2009-2010
- PONTIAC WAVE: 2009-2010
After your purchase, it is essential to provide us with your VIN to ensure we can ship you a perfectly matched and fully functional Programmed 2011-2012 Cruze ECM.
Frequently Asked Questions
Why do you need my VIN?
Your Vehicle Identification Number (VIN) is crucial because it contains specific information about your car’s engine, transmission, and factory-installed options. We use the VIN to load the exact GM-certified software onto the ECM, ensuring it communicates perfectly with all other modules in your vehicle for a seamless, plug-and-play installation.
Will I need to do any additional programming after installation?
No. This ECM arrives ready for installation. The VIN-specific flashing we perform beforehand means you will not need to visit a dealer or mechanic for further programming. In some cases, a simple security or crankshaft position sensor relearn procedure may be required, which can be done with many common scan tools.
What are the most common signs of a failing ECM?
The most common symptoms include a constant check engine light, engine misfires, poor fuel economy, stalling, hard starting, or a complete no-start condition. You may also experience harsh shifting from the automatic transmission or find that a diagnostic scanner cannot communicate with the engine computer.
Is this a difficult part to replace myself?
For most of the listed vehicles, the ECM is in an accessible location in the engine bay. The replacement process typically involves disconnecting the negative battery terminal, unplugging the electrical connectors from the old ECM, unbolting it, and then installing the new one in the reverse order. It is a job many DIY mechanics can perform with basic hand tools.
What is the warranty on this part?
This unit is backed by our one-year replacement warranty. This provides coverage against defects and ensures you receive a reliable, long-lasting part for your vehicle.