Is Your Vehicle Running Rough, Stalling, or Showing a Check Engine Light?
If you’re experiencing frustrating engine problems like erratic performance, poor fuel economy, unexpected stalling, or a persistent check engine light, the root cause might be a failing Engine Control Module (ECM). The ECM is the central computer of your vehicle’s engine, responsible for managing everything from fuel injection and ignition timing to emissions controls and transmission shifting. When it fails, it can cause a cascade of issues that are often difficult to diagnose, leaving you with an unreliable vehicle.
The Direct-Fit Solution: A Pre-Programmed 2010 Allure ECM
This isn’t just a replacement part; it’s a complete solution. We offer a genuine quality Engine Control Module, part number 12636355, that is professionally programmed specifically for your vehicle. Using the Vehicle Identification Number (VIN) you provide, we flash the module with the latest, most stable software updates directly from GM. This critical step ensures that the new ECM communicates flawlessly with your vehicle’s other systems, restoring its original performance and reliability without the need for an expensive trip to the dealership for programming.
From the Diagnostic Bay
We had a 2011 Chevy Traverse come into the shop with a complaint of intermittent stalling at stoplights. The owner had already replaced the battery and cleaned the throttle body, but the problem persisted. There were no hard fault codes, just a history of random communication errors. After hours of checking wiring, we monitored the live data from the ECM and noticed the command for the fuel pump relay would flicker just before a stall. We suspected the ECM’s internal processor was failing under load. We installed one of our pre-programmed modules, flashed to the customer’s VIN, and the Traverse ran perfectly. It’s a classic case where the problem isn’t mechanical, but a failure in the vehicle’s central computer.
Common Symptoms of a Failing 3.6L ECM
- ✔ Persistent Check Engine Light (CEL) with codes like P0601, P0606, or other internal processor faults.
- ✔ Unexplained engine stalling or hesitation, especially when warm.
- ✔ Noticeable decrease in fuel economy.
- ✔ Engine misfires or rough idling that isn’t solved by new spark plugs or coils.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ The vehicle cranks but refuses to start (no-start condition).
- ✔ Loss of communication with the OBD-II port, making diagnostics impossible.
- ✔ Cooling fans running constantly, even when the engine is cold.
Our Simple, Secure Programming Process
Getting your vehicle back on the road is easy. After you complete your purchase, simply provide us with your vehicle’s 17-digit VIN. Our technicians will use this information to load the correct GM-certified software onto the module. This ensures perfect compatibility with your engine, transmission, and all factory options. For owners of a 2010-2011 Chevrolet Camaro or Buick Lacrosse, an additional step is required to maintain the anti-theft system. Due to the immobilizer data stored in your original ECM, you will need to send us your old module. We will securely transfer this information to the new unit, making it a true plug-and-play installation. We will contact you with clear instructions if you purchase for one of these vehicles.
This Module is a Direct Replacement for the Following Part Numbers:
- 12636355
- 19300015
- 19300014
- 12617230
- 12635019
Guaranteed Fitment for These Vehicles (with 3.6L V6 Engine):
- Buick Allure: 2010
- Buick Enclave: 2010-2011
- Buick LaCrosse: 2010-2011
- Cadillac CTS: 2010-2011
- Cadillac STS: 2010-2011
- Chevrolet Camaro: 2010-2011
- Chevrolet Traverse: 2010-2011
- GMC Acadia: 2010-2011
- Saturn Outlook: 2010
Frequently Asked Questions
Why do you need my VIN?
Your Vehicle Identification Number (VIN) is essential for us to load the exact, correct software for your vehicle’s specific configuration. This includes the engine, transmission, emissions system, and any other factory-installed options. Programming with the VIN ensures the ECM works perfectly right out of the box.
What is the special immobilizer service for Camaro and LaCrosse?
For these specific models, critical anti-theft (immobilizer) data is stored in the original ECM. To ensure your keys continue to work without requiring a complex dealer relearn procedure, we need to transfer this data from your old module to the new one. We will provide a shipping label and instructions for sending your old module to us after your purchase.
Is this part difficult to install?
The physical installation is typically straightforward, involving disconnecting the battery and swapping the module. Because our module comes pre-programmed, it eliminates the most difficult step. However, some vehicles may require a simple “Security Relearn Procedure” or “Crankshaft Variation Relearn” which can be done without a scan tool. We always recommend installation by a qualified mechanic.
Will this definitely fix my vehicle’s problem?
This module will correct any issues directly caused by a faulty ECM. While the symptoms listed are common for ECM failure, they can also be caused by other issues like bad sensors or wiring. Proper vehicle diagnosis is key. This part is guaranteed to be a functioning, correctly programmed module.
What happens after I place my order?
After you order, you will receive a confirmation email. Please reply to it with your 17-digit VIN. Once we receive your VIN, we will program the module and ship it to you, typically within 1-2 business days. If you have a Camaro or LaCrosse, we will contact you with instructions for the immobilizer service.