Restore Peak Performance to Your GM 3.6L Vehicle
Is your 2010-2011 GMC Acadia, Buick Enclave, Chevy Traverse, or other compatible GM vehicle suffering from perplexing engine issues? A faulty Engine Control Module (ECM), the central computer of your vehicle, is often the culprit behind problems like a persistent check engine light, poor fuel economy, rough idling, or even a no-start condition. This replacement ECM, part number 12636355, is the definitive solution to restore your vehicle’s factory performance and reliability.
The ECM is responsible for managing a complex array of functions, from fuel injection and ignition timing to transmission shifting and emissions control. When it begins to fail, the symptoms can be widespread and frustrating. Instead of risking a costly and time-consuming trip to the dealership, you can get a precisely prepared module shipped directly to you. We professionally program this module with the latest GM-certified software updates using your vehicle’s specific Vehicle Identification Number (VIN). This ensures seamless integration and optimal performance right out of the box.
From the Diagnostic Bay
We once had a 2011 Traverse in the shop with a classic case of what looked like a bad ECM. The engine would crank but not start, and communication with the scan tool was intermittent. The customer had already replaced the fuel pump and crank sensor with no luck. Before condemning the module, we did a thorough check of the basics. We found a corroded main ground strap from the engine block to the chassis, barely making a connection. After cleaning the contact points and tightening the bolt, the truck fired right up. This is a crucial reminder: while a faulty ECM can cause a no-start, always verify the main power and ground connections to the module before replacement. A few minutes with a multimeter can save you hundreds of dollars.
Common Symptoms of a Failing ECM
- ✔ Persistent Check Engine Light (CEL) illumination
- ✔ Engine stalling or shutting off while driving
- ✔ No-start or hard-starting conditions
- ✔ Noticeable decrease in fuel efficiency
- ✔ Rough or erratic engine idle
- ✔ Poor acceleration and loss of power
- ✔ Harsh or incorrect automatic transmission shifting
- ✔ Communication errors with diagnostic scan tools
Why Choose Our Programmed 2010-2011 Acadia ECM?
Our process is designed to be simple, effective, and reliable. When you purchase this module, you are getting more than just a part; you are getting a comprehensive service. We take your vehicle’s VIN and program the ECM with the exact software and calibrations intended for your specific make, model, and options. This critical step ensures all related vehicle systems function correctly together. This is a genuine OEM component, tested and verified to meet strict quality standards, providing you with a dependable and lasting repair.
This module is a direct fit for the following vehicles with the 3.6L V6 engine:
- 2010-2011 Buick Allure
- 2010-2011 Buick LaCrosse
- 2010-2011 Buick Enclave
- 2010-2011 Cadillac CTS
- 2010-2011 Cadillac STS
- 2010-2011 Chevrolet Camaro
- 2010-2011 Chevrolet Traverse
- 2010-2011 GMC Acadia
- 2010 Saturn Outlook
This unit is also a direct replacement for part numbers: 19300015, 19300014, 12617230, and 12635019.
Simple Process, Professional Results
Getting your vehicle back on the road is straightforward. After you complete your purchase, simply provide us with your VIN. Our technicians will handle the programming, ensuring the module is ready for installation upon arrival. For most models, this is a plug-and-play solution. Please note that for 2010-2011 Camaro and LaCrosse models, an additional step is required to sync the immobilizer (anti-theft) system. For these specific vehicles, you will need to send us your original ECM so we can transfer the security data to the replacement unit. We will contact you with clear instructions if you purchase for one of these models.
Frequently Asked Questions
Why do you need my VIN?
Your Vehicle Identification Number (VIN) is essential for programming the ECM correctly. It allows us to load the precise GM factory software, calibrations, and security information for your vehicle’s specific engine, transmission, and options package. This ensures perfect compatibility and performance.
Is this part difficult to install?
The physical installation is generally straightforward for someone with basic mechanical skills. The ECM is typically located in the engine bay (behind the fan shroud or on the side). However, it is critical to disconnect the battery before swapping the module. While our programming makes it plug-and-play, some vehicles may require a simple security relearn procedure, which can be done without special tools.
Will this part fix my check engine light?
If the check engine light and other symptoms are caused by a faulty ECM, this replacement module will solve the problem. However, it’s crucial to ensure your vehicle has been properly diagnosed. Other issues, such as faulty sensors or wiring problems, can cause similar symptoms. We recommend confirming the diagnosis before ordering.
What is the immobilizer service for the Camaro and LaCrosse?
The immobilizer is an anti-theft system that prevents the engine from starting without the correct key. On Camaro and LaCrosse models of this era, the security data is stored in the ECM. To ensure the new module works, we must transfer this unique data from your old ECM to the new one. This service makes the replacement truly plug-and-play, avoiding a trip to the dealer.
Do I need to do anything after installation?
After installing the ECM and reconnecting the battery, you should start the vehicle and let it idle for a few minutes. In some cases, a security relearn procedure (often called a key cycle relearn) may be necessary. This procedure is simple and instructions can be easily found online for your specific model. It does not require any special tools.