Is Your GM Vehicle Running Rough? The ECM Might Be the Culprit.
The Engine Control Module (ECM), often called the engine’s brain, is the master computer responsible for managing your vehicle’s performance, fuel efficiency, and emissions. When it begins to fail in your 2010-2011 Buick, Cadillac, Chevy, or GMC vehicle, you can experience a wide range of frustrating and potentially damaging issues. From a persistent Check Engine Light to poor fuel economy or even a no-start condition, a faulty ECM can bring your daily drive to a halt. This replacement Engine Control Module, part number 19300015, is the definitive solution to restore your vehicle’s factory performance and reliability.
Unlike a generic part from a local store, this module is not just a piece of hardware. It’s a complete solution, professionally programmed with the latest official GM software updates specifically for your vehicle’s Vehicle Identification Number (VIN). This critical programming step ensures that the module communicates flawlessly with all other systems in your car, from the transmission to the anti-lock brakes, providing a seamless, plug-and-play installation experience that eliminates the need for an expensive trip to the dealership for programming.
We recently had a 2011 GMC Acadia come in with a complaint of intermittent stalling at stoplights and a check engine light with a P0606 (ECM Processor Fault) code. The customer had already replaced the spark plugs and an O2 sensor with no luck. After confirming power and ground to the module were solid, we knew the internal processor was failing. We installed one of these VIN-programmed modules, performed the 30-minute security relearn procedure right in the bay, and the vehicle ran perfectly. The customer was thrilled to have their reliable family vehicle back without the hefty dealership bill for diagnostics and programming.
Solving Your Engine Problems with a Programmed GM 3.6L ECM
A failing engine computer can manifest in numerous ways, often mimicking other component failures. This can lead to costly and time-consuming misdiagnoses. By understanding the common symptoms, you can more accurately pinpoint the ECM as the source of the problem. This replacement GM 3.6L ECM is engineered to resolve these exact issues, getting you back on the road with confidence.
Common Symptoms of a Failing ECM
- ✔ Check Engine Light is on with communication-related or processor fault codes (e.g., P0601, P0606).
- ✔ Engine misfires, stumbles, or hesitates during acceleration.
- ✔ The vehicle cranks but refuses to start.
- ✔ Unexplained and significant drop in fuel economy.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Intermittent stalling, especially when the engine is warm.
- ✔ Cooling fans running constantly, even when the engine is cold.
A Seamless, Programmed Solution
This isn’t just a part in a box; it’s a service designed for you. When you place your order, you provide us with your VIN. Our technicians then flash the module with the correct, up-to-date software for your specific vehicle configuration. This ensures all engine parameters, transmission shift points, and emissions controls are set to factory specifications. This module is a direct replacement for several part numbers, including 19300015, 19300014, 12617230, 12636355, and 12635019.
Special Note for Camaro and Lacrosse Owners: For 2010-2011 Chevrolet Camaro and Buick Lacrosse models, the immobilizer (anti-theft) system requires additional data transfer from your original module. To ensure a true plug-and-play experience, we will arrange for you to send us your original ECM. We will securely extract the immobilizer data and program it into your new unit, so it starts right up without any complex security procedures. We will contact you with instructions after your purchase.
Guaranteed Fitment
This GM 3.6L ECM is a guaranteed fit for the following vehicles equipped with the 3.6L V6 engine:
- 2010-2011 Buick Lacrosse
- 2010 Buick Allure
- 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
Frequently Asked Questions
What do I need to do after installing this ECM?
After installation, you will need to perform a security relearn procedure, also known as the Passlock or anti-theft relearn. This procedure typically takes about 30 minutes and involves cycling the ignition key. It does not require any special tools and we can provide instructions. For some vehicles, a Crankshaft Position Variation relearn may also be needed, which requires a capable scan tool.
How do I provide my VIN?
You can add your 17-digit VIN to the notes section during checkout. If you forget, don’t worry! We will contact you via email after your purchase to request the VIN before we program and ship the module.
Is this a new or used part?
This is a high-quality, inspected, and tested original equipment part that has been prepared for programming. It is guaranteed to function to OE specifications and is loaded with fresh, vehicle-specific software.
Will this fix my P0420 or P0300 codes?
While a faulty ECM can sometimes cause these codes, they are more commonly caused by other issues. A P0420 code usually points to a catalytic converter or oxygen sensor problem, and a P0300 (random misfire) code often relates to spark plugs, ignition coils, or fuel delivery. We recommend proper diagnosis before replacing the ECM for these specific codes.
What if I have a Camaro or Lacrosse? What is the process?
For these specific models, after you place your order, we will email you with a prepaid shipping label and instructions for sending your original ECM to us. Once we receive it, we will transfer the necessary security data to the new unit and ship it out to you the same day. This ensures the module is 100% plug-and-play.