Restore Your Engine’s Brain and Get Back on the Road
Is your 2010-2011 GMC Acadia suffering from frustrating issues like a persistent check engine light, stalling, rough idling, or a complete no-start condition? These are classic signs of a failing Engine Control Module (ECM), the central computer that manages your engine’s performance, fuel efficiency, and emissions. Driving with a faulty ECM can lead to poor fuel economy, failed emissions tests, and potentially leave you stranded. This isn’t just an inconvenience; it’s a critical component for your vehicle’s reliability and health.
We offer a dependable and straightforward solution: a replacement ECM, part number 19300014, that arrives at your door programmed specifically for your vehicle. Simply provide us with your Vehicle Identification Number (VIN) after purchase, and our technicians will flash the module with the latest official GM software updates. This ensures perfect communication between the ECM and all other systems in your Acadia, restoring it to factory specifications without a costly trip to the dealership for programming.
From the Diagnostic Bay: The Intermittent No-Start
A customer brought in an ’11 Enclave with the 3.6L V6—same platform as your Acadia—with an intermittent no-start that no one could figure out. It would run fine for weeks, then refuse to crank. There were no consistent trouble codes, just a random U0100 (Lost Communication with ECM) that would appear and disappear. After checking all the usual suspects—battery, starter, grounds—we focused on the ECM. In my experience, these modules can develop internal connection issues that are sensitive to temperature changes. We swapped in a pre-programmed ECM, and the problem vanished instantly. It’s a reminder that a failing computer doesn’t always throw a clear code; sometimes, the only symptom is unreliability.
Is Your Vehicle Showing These Symptoms?
A failing ECM can cause a variety of confusing problems. Here are some of the most common indicators that your module may need replacement:
- ✔ Check Engine Light is illuminated with communication or internal processor codes (e.g., P0601, P0606, P060A).
- ✔ Vehicle intermittently stalls or refuses to start.
- ✔ Noticeable decrease in fuel economy.
- ✔ Engine runs rough, misfires, or hesitates during acceleration.
- ✔ Automatic transmission shifts erratically or harshly.
- ✔ Loss of communication with the module (U-codes like U0100).
- ✔ Failure to pass state emissions testing.
A Straightforward Guide to Installation
Installing your pre-programmed 2010-2011 Acadia ECM is a manageable task for a confident DIYer. On the Acadia, the ECM is typically located behind the fan shroud. Following these steps will help ensure a smooth process.
- Safety First: Always disconnect the negative terminal from your vehicle’s battery and wait 10-15 minutes to allow all systems to power down completely.
- Locate the ECM: On your Acadia, Enclave, or Traverse, you will find the ECM mounted behind the engine’s cooling fan shroud. You may need to remove a few plastic clips or bolts to access it.
- Disconnect the Connectors: Carefully unlatch and remove the electrical wiring harness connectors from the old ECM. Inspect the connectors for any signs of corrosion or damage and clean them if necessary.
- Remove the Old Module: Unbolt the old ECM from its mounting bracket. Keep the original mounting hardware, as you will need it for the new module.
- Install the New ECM: Mount your new, pre-programmed ECM onto the bracket and secure it with the original hardware. Reconnect the wiring harnesses, ensuring they click securely into place.
- Reconnect the Battery: Reattach the negative battery terminal. Your vehicle is now ready to start. In some cases, a security relearn procedure may be necessary, which can typically be done without special tools.
Verified Vehicle Compatibility
This module is a direct replacement for part numbers 19300015, 19300014, 12617230, 12636355, and 12635019. It is guaranteed to fit the following vehicles equipped with the 3.6L V6 engine:
- 2010-2011 GMC Acadia (behind fan shroud)
- 2010-2011 Buick Enclave (behind fan shroud)
- 2010-2011 Chevrolet Traverse (behind fan shroud)
- 2010 Saturn Outlook (behind fan shroud)
- 2010-2011 Buick LaCrosse (LH engine compartment)
- 2010 Buick Allure (LH engine compartment)
- 2010-2011 Cadillac CTS (RH front engine compartment)
- 2010-2011 Cadillac STS (RH engine)
- 2010-2011 Chevrolet Camaro (3.6L)
Important Note for Camaro & LaCrosse Owners: For these specific models, a simple VIN flash is not enough due to the immobilizer system. To ensure true plug-and-play functionality, you will need to send us your original ECM. We will extract the immobilizer data and program it into the new module before shipping it to you. We will contact you with instructions after your purchase.
Frequently Asked Questions
How do I provide my VIN?
After you complete your purchase, you can send us your 17-digit VIN through the messaging system, or simply add it as a note during checkout. We cannot program and ship the module without it.
Is any additional programming required after installation?
No. This ECM comes fully programmed with the latest GM software matched to your VIN. In most cases, it is a plug-and-play installation. Some vehicles may require a simple key relearn procedure, which can be found in your owner’s manual or online.
Why do I need to send my old ECM for a Camaro or LaCrosse?
The Camaro and LaCrosse models have more complex anti-theft (immobilizer) systems. The security data is stored in the original ECM and must be transferred to the replacement module for the car to start. Our service handles this transfer for you.
Will this fix my specific problem?
This module will correct issues directly caused by a faulty ECM, such as internal processor failure (P0606), communication errors, or failed driver circuits. It’s crucial to ensure your vehicle has been properly diagnosed, as other issues (like bad wiring or failed sensors) can mimic ECM symptoms.
What if my original part number is not 19300014?
This module is a direct replacement for several part numbers, including 19300015, 12617230, 12636355, and 12635019. As long as your vehicle is on the compatibility list, this module will function correctly.