Is Your Chevrolet Traverse Running Rough?
If your 2010 or 2011 Chevrolet Traverse is experiencing perplexing issues like stalling, poor fuel economy, a persistent check engine light, or even a no-start condition, the root cause could be a failing Engine Control Module (ECM). The ECM is the central computer of your vehicle, responsible for managing everything from fuel injection and ignition timing to transmission shifting and emissions control. When it begins to fail, it can create a cascade of problems that are often difficult to diagnose.
This is a direct-fit replacement Engine Control Module, part number 12636355, for your vehicle. We take the guesswork out of the repair by pre-programming the unit specifically to your vehicle’s Vehicle Identification Number (VIN). This ensures that when you receive the part, it has the latest software updates from GM and is ready for installation, restoring the performance and reliability you depend on.
From the Diagnostic Bay
We had a 2011 Acadia (which uses the same platform as the Traverse) come into the shop with a complaint of intermittent stalling at stoplights and a strange, jerky transmission shift from 1st to 2nd gear. The customer had already replaced the spark plugs and a coil pack with no success. No hard fault codes were stored, only a few random communication errors. After hours of chasing wires, we focused on the ECM. We swapped in a known-good, programmed module, and all the problems vanished instantly. The original ECM had an internal logic failure that only showed up under specific operating conditions, a classic sign of a failing computer that many shops might miss.
Common Symptoms of a Failing ECM
- ✔ Persistent Check Engine Light (CEL) that won’t clear.
- ✔ Engine misfires, stumbling, or hesitation during acceleration.
- ✔ Noticeable decrease in fuel economy.
- ✔ Difficulty starting the engine or a complete no-start condition.
- ✔ Unexplained stalling, especially when the engine is warm.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Communication error codes with other vehicle modules (e.g., U-codes).
The Solution: A VIN-Programmed 2010-2011 Traverse ECM
Don’t settle for a generic, unprogrammed module that will require an expensive trip to the dealership. Our process is simple and effective. When you purchase this ECM, you provide us with your vehicle’s VIN. Our technicians then use that information to flash the module with the correct, most current GM-certified software for your specific vehicle configuration. This critical step ensures all systems communicate properly and your engine operates at peak efficiency.
This module is a direct replacement for multiple part numbers, including 19300015, 19300014, 12617230, 12636355, and 12635019. Once installed, you may need to perform a simple security relearn procedure (often called a key relearn), which can typically be done in your driveway without any special tools. This syncs the new ECM with your vehicle’s anti-theft system.
Guaranteed Fitment For Your Vehicle
This Engine Control Module is guaranteed to fit the following vehicles equipped with the 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
Important Note for Camaro & LaCrosse Owners: Due to the specific anti-theft systems in the 2010-2011 Camaro and LaCrosse, we require your original ECM to be sent to us. This allows us to extract the unique immobilizer data and program it into the new module, making the installation truly plug-and-play for you. We will contact you with shipping instructions after your purchase.
Frequently Asked Questions
What information do you need from me?
After you place your order, we will need the 17-digit Vehicle Identification Number (VIN) from your vehicle. You can usually find this on your driver’s side dashboard (visible through the windshield) or on your vehicle’s registration or insurance card.
Will I need to have this programmed by a dealer?
No. We handle all the programming before we ship the part to you. The module will arrive with the latest GM software, matched to your VIN, making it ready for installation.
Where is the ECM located on my 2010-2011 Traverse?
On the Traverse, Acadia, Enclave, and Outlook, the ECM is typically located behind the engine’s cooling fan shroud. Always disconnect the negative battery terminal before attempting to remove or install any electronic modules.
What is a security relearn procedure?
This is a simple procedure that syncs the new ECM to your vehicle’s anti-theft system. It usually involves turning the key to the ‘ON’ position for 10-15 minutes, then off, and repeating this cycle three times. We can provide specific instructions for your vehicle upon request.
Is this a new part?
This is a high-quality, tested, and verified used component. Each unit is inspected and programmed by our expert technicians to ensure it meets or exceeds original factory specifications for performance and reliability.