Is your 2010-2011 GMC Acadia, or another compatible GM vehicle, exhibiting frustrating and unpredictable behavior? Issues like a persistent Check Engine Light, rough idling, stalling, poor fuel economy, or even a no-start condition can often be traced back to 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. When it fails, the entire system’s performance is compromised. This replacement ECM, part number 19300015, is the definitive solution to restore your vehicle’s performance, reliability, and drivability.
From the Diagnostic Bay
We had a 2011 Buick Enclave come into the shop that was a real head-scratcher. The customer reported intermittent stalling at stoplights and a check engine light with a slew of seemingly unrelated communication codes. We checked the wiring harnesses, tested sensors, and couldn’t find a consistent fault. Everything pointed to a communication network issue. On a hunch, we connected a scope to the main data lines at the ECM. We found the signal was noisy and dropping out sporadically. The internal processor of the original ECM was failing under load, corrupting the data bus and causing chaos across the vehicle’s modules. Swapping in a properly programmed replacement ECM like this one instantly cleared all the communication codes and resolved the stalling. It’s a perfect example of how a single failing module can mimic a dozen other problems.
Symptoms of a Failing 2010-2011 Acadia ECM
A faulty ECM can manifest in numerous ways, often making diagnosis difficult. If your vehicle is experiencing any of the following issues, a failing engine computer may be the culprit. This module is the direct solution for these common problems.
- ✔ Check Engine Light: The most common indicator. You may see codes related to sensors, communication errors (U-codes), or processor faults.
- ✔ Engine Stalling or Misfiring: The engine may stall unexpectedly while driving or at idle. You might also experience rough running or noticeable misfires.
- ✔ No-Start Condition: The engine cranks but refuses to start. This can happen if the ECM fails to control the fuel pump or ignition coils.
- ✔ Poor Performance & Fuel Economy: A significant drop in gas mileage or a feeling of sluggishness and lack of power can be caused by incorrect fuel and air calculations from a faulty ECM.
- ✔ Transmission Shifting Issues: The ECM works with the Transmission Control Module (TCM). A failing ECM can cause harsh shifting, delayed engagement, or the transmission getting stuck in one gear.
- ✔ Intermittent Electrical Problems: Seemingly random issues with other electronic components can sometimes be traced back to a failing central computer.
The Importance of VIN Programming
You can’t simply install a used ECM from another vehicle and expect it to work. Modern vehicles use a sophisticated anti-theft system and have specific software calibrations for different options and emissions standards. Our service eliminates the guesswork and costly dealership visits. We flash this module with the latest GM-certified software updates specifically for your vehicle using the VIN you provide. This ensures that all parameters, from fuel maps to immobilizer information, are a perfect match for your vehicle’s factory configuration. This makes the installation process as straightforward as possible, restoring your vehicle to its original operating condition.
For certain models like the 2010-2011 Camaro and LaCrosse, the immobilizer (anti-theft) data is unique and requires an extra step. To ensure a true plug-and-play experience, we will need your original module to transfer this critical security information to the replacement unit. We will contact you with simple instructions if you purchase this ECM for one of these vehicles.
Full Compatibility List
This ECM is a direct replacement for part numbers 19300015, 19300014, 12617230, 12636355, and 12635019. It is guaranteed to fit and function correctly on the following vehicles equipped with the 3.6L engine:
- 2010-2011 Buick LaCrosse
- 2010-2011 Chevrolet Traverse
- 2010-2011 Cadillac CTS
- 2010-2011 Chevrolet Camaro
- 2010 Saturn Outlook
- 2010 Buick Allure
- 2010-2011 Buick Enclave
- 2010-2011 GMC Acadia
- 2010-2011 Cadillac STS
Frequently Asked Questions
Is this a plug-and-play part?
Yes, for most vehicles. We program the ECM to your vehicle’s VIN before shipping, so it’s ready for installation. For the Camaro and LaCrosse, we require your old module to transfer security data for a true plug-and-play solution. In some rare cases, a security relearn or crankshaft position sensor relearn may be necessary, which can be done with a capable scan tool.
What information do you need from me?
After you place your order, you must provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN). This is crucial for us to load the correct software and ensure compatibility.
Will this fix my check engine light?
This module will correct any issues and check engine light codes directly caused by a failing ECM. It is essential to properly diagnose your vehicle first, as the check engine light can be triggered by other failing components like sensors or wiring.
Where is the ECM located on my 2010-2011 Acadia?
On the 2010-2011 GMC Acadia, as well as the Traverse, Enclave, and Outlook, the ECM is typically located behind the engine’s cooling fan shroud. Always disconnect the battery before attempting to access or replace any electronic modules.
Do I need to take my car to a dealer after installation?
No. Our VIN programming service is designed to eliminate the need for a trip to the dealership for software flashing. The module arrives ready to be installed and for the vehicle to be started.