Restore Peak Performance to Your GM Vehicle
Is your Buick LaCrosse, Cadillac CTS, or other GM vehicle suffering from perplexing engine issues? A faulty Engine Control Module (ECM) is often the culprit behind problems like a persistent check engine light, rough idling, stalling, or a frustrating no-start condition. The ECM is the central computer of your engine, meticulously managing fuel injection, ignition timing, and emissions systems. When it fails, the entire performance and reliability of your vehicle are compromised. This replacement ECM, part number 12588472, is the definitive solution to restore your engine’s proper function and get you back on the road with confidence.
Common Symptoms of a Failing 2005-2008 LaCrosse ECM
A failing engine computer can manifest in numerous ways, often mimicking other component failures. If you’re experiencing any of the following, your ECM could be the root cause. This module is a direct replacement for vehicles exhibiting these issues, providing a reliable and cost-effective repair.
- ✔ Check Engine Light: The light is on, and you may have codes related to module communication, sensor circuits, or processor faults.
- ✔ Engine Stalling or Misfiring: The engine may stall unexpectedly while driving or at idle, and you might feel random misfires or hesitation.
- ✔ No-Start Condition: The engine cranks over but refuses to start, often due to the ECM not firing the injectors or ignition coils.
- ✔ Poor Fuel Economy: A malfunctioning ECM can’t properly calculate the air-fuel mixture, leading to a noticeable drop in MPG.
- ✔ Shifting Problems: In many vehicles, the ECM communicates with the transmission controller, and a failure can lead to harsh or erratic shifting.
- ✔ Failed Emissions Test: An inability to regulate the engine’s emissions systems will almost certainly result in a failed smog check.
Plug-and-Play Installation with VIN Programming
The biggest hurdle when replacing a modern vehicle computer is the need for specialized programming. This module eliminates that problem. We handle the complex part for you. Before we ship your part, our technicians will flash the module with the latest GM-certified software updates, specifically coded to your vehicle’s unique Vehicle Identification Number (VIN). This ensures that the ECM communicates flawlessly with your car’s other modules, anti-theft system, and specific options. There’s no need for an expensive trip to the dealership for programming. Simply provide your VIN after purchase, and you’ll receive a part that is ready for installation right out of the box.
Vehicle Fitment and Part Number Compatibility
This ECM is a tested, functional part sourced from a salvaged vehicle. It is a direct replacement for several service numbers, ensuring wide compatibility. Please verify that your vehicle and options match the list below.
Compatible Service Numbers: 12581144, 12588472, 12592124, 19260507
This part fits the following vehicles:
- Buick Allure: 2005-2008 (3.6L)
- Buick LaCrosse: 2005-2008 (3.6L)
- Buick Rendezvous: 2004-2006 (3.6L)
- Cadillac CTS: 2004-2007 (Base, ID 12592124 or 19260507)
- Cadillac SRX: 2004-2006 (3.6L)
Frequently Asked Questions
Do I need to get this ECM programmed?
No. We handle all the programming for you before shipment. Just provide us with your vehicle’s VIN during or after checkout, and the module will arrive ready to install.
Is this a new part?
This is a high-quality, fully functional used ECM that has been carefully removed from a salvaged vehicle and thoroughly tested by our team.
Where is the ECM located on my 2006 Buick LaCrosse?
On the 2006-2008 Buick LaCrosse and Allure with the 3.6L engine, the ECM is typically located in the lower air cleaner housing assembly in the engine bay.
What is a VIN and how do I find it?
The VIN is your 17-digit Vehicle Identification Number. You can easily find it on the driver’s side of the dashboard (visible through the windshield), on your vehicle’s registration, or on your insurance card.
Will this part fix my specific problem?
This ECM is a direct solution for a failed module. While it resolves the common symptoms listed, we always recommend a proper diagnosis by a qualified mechanic to confirm the ECM is the point of failure before ordering.