Is Your GM Vehicle Running Rough or Not Starting?
The Engine Control Module (ECM), often called the engine’s brain, is the central command center for your vehicle’s performance, fuel economy, and emissions. When the ECM in your 2010-2011 GM vehicle with the 3.6L engine begins to fail, it can cause a cascade of confusing and frustrating problems. From a sudden check engine light and poor fuel mileage to intermittent stalling or a complete no-start condition, a faulty ECM can make your vehicle unreliable and unsafe. Don’t let a failing module keep you off the road. This replacement ECM, part number 12635019, is the definitive solution to restore your vehicle’s factory performance and dependability.
From the Diagnostic Bay
We had a 2011 Buick Lacrosse come into the shop with a persistent P0300 random misfire code. The owner had already replaced all the spark plugs, ignition coils, and even the fuel injectors, spending hundreds of dollars with no success. The misfires were intermittent and unpredictable. After hooking up our diagnostic scanner and monitoring live data, we noticed erratic fuel trim and injector pulse width signals that didn’t correspond to engine load or sensor inputs. This pointed away from the mechanical parts and straight to the processor. We installed a VIN-programmed ECM, and the car immediately ran smoothly. The P0300 code never returned. It’s a classic case where chasing symptoms can be costly; sometimes, the problem lies with the computer that’s interpreting the data.
Symptoms of a Failing 2010-2011 GM ECM
If you’re experiencing any of the following issues with your Acadia, Traverse, CTS, or other compatible model, a faulty engine computer could be the culprit. Look out for these common warning signs:
- ✔ Check Engine Light is on with various trouble codes (DTCs) stored.
- ✔ Engine misfires, stumbles, or runs rough.
- ✔ Vehicle stalls unexpectedly while driving or at idle.
- ✔ Difficulty starting the engine or a complete no-start condition.
- ✔ Noticeable decrease in fuel economy.
- ✔ Poor acceleration and overall loss of engine power.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Communication errors with diagnostic scan tools.
The Simple, Reliable Solution: VIN Programming Included
Replacing an ECM isn’t just about swapping hardware. Modern vehicles require the module to be programmed with your specific Vehicle Identification Number (VIN) to function correctly. This process ensures the ECM communicates properly with all other modules on your vehicle, from the transmission to the anti-lock brakes. We take the guesswork and expensive dealership visits out of the equation. Simply provide us with your vehicle’s VIN during checkout, and our technicians will flash this module with the latest GM-certified software for your exact make and model. This ensures a seamless installation and restores your engine’s original operating parameters.
This module is a direct replacement for several part numbers, including: 19300015, 19300014, 12617230, 12636355, and 12635019. By purchasing from us, you are getting a quality-tested component that is ready to be installed in your vehicle upon arrival.
Fitment for 3.6L Engines:
- ✔ 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
What is VIN programming and why is it necessary?
VIN programming involves loading your vehicle’s specific software and settings onto the ECM. It’s crucial because it allows the module to communicate with your car’s security system (immobilizer), transmission, and other electronic components. Without it, the vehicle will not start or run correctly.
Do I need to do any additional programming after installation?
For most models listed, this ECM is plug-and-play after we program it with your VIN. However, for the Camaro and LaCrosse models, an extra step is required for the immobilizer system. We will need your old module to transfer security data to the new one, making it fully plug-and-play. We will contact you with instructions if you purchase for one of these vehicles.
Where do I find my VIN?
Your 17-digit Vehicle Identification Number (VIN) can be found on your vehicle’s registration, insurance card, or on a placard on the driver’s side dashboard visible through the windshield.
Is this a new or used part?
This is a high-quality, tested replacement part that has been verified to meet or exceed original equipment specifications. It is programmed with the latest software updates from GM to ensure optimal performance.
What if I order the wrong part?
We strongly recommend verifying that your vehicle and original part number are listed as compatible before ordering. The VIN programming process matches the part to your vehicle, so providing an accurate VIN is essential. If you have any doubts, please contact us with your VIN before purchasing.