Is your Buick Allure, LaCrosse, or Cadillac CTS running rough, stalling, or showing a persistent check engine light? These are classic signs of a failing Engine Control Module (ECM), the central computer that manages your vehicle’s engine performance, fuel economy, and emissions. A faulty ECM can lead to a frustrating driving experience and can prevent your vehicle from passing an emissions test. Don’t let a bad module keep you off the road. This genuine, used OEM ECM, part number 12588472, is the reliable and cost-effective solution to restore your vehicle’s performance and dependability.
What sets this module apart is our professional programming service. Before we ship the part, we flash it with the latest official GM software updates, specifically tailored to your vehicle using the Vehicle Identification Number (VIN) you provide. This critical step ensures that the ECM communicates perfectly with your car’s other electronic systems, just as it did from the factory. This eliminates the need for an expensive trip to the dealership for programming, saving you both time and money. You receive a part that is ready for installation, simplifying the repair process significantly.
Common Symptoms of a Failing ECM
- ✔ Persistent Check Engine Light (CEL)
- ✔ Engine stalling or misfiring
- ✔ Poor or erratic engine performance
- ✔ Reduced fuel economy
- ✔ Difficulty starting the vehicle or a no-start condition
- ✔ Communication errors with diagnostic scan tools
- ✔ Harsh or incorrect automatic transmission shifting
Why Choose a VIN-Programmed 2005-2008 Allure ECM?
This isn’t just a replacement part; it’s a complete solution. Modern vehicles rely on a complex network of modules that must be in sync. Our programming service ensures this module is a perfect match for your vehicle’s specific configuration. By using your VIN, we load the correct software and calibrations for your engine, transmission, and emissions equipment. This used OEM module has been carefully inspected and is guaranteed to restore your vehicle’s functionality. It’s a direct-fit replacement for service numbers 12581144, 12588472, 12592124, and 19260507, offering broad compatibility across several GM models.
Guaranteed Fitment For The Following Vehicles:
- ✔ Buick Allure: 2005, 2006, 2007, 2008 (3.6L)
- ✔ Buick LaCrosse: 2005, 2006, 2007, 2008 (3.6L)
- ✔ Buick Rendezvous: 2004, 2005, 2006 (3.6L)
- ✔ Cadillac CTS: 2004, 2005, 2006, 2007 (Base)
- ✔ Cadillac SRX: 2004, 2005, 2006 (3.6L)
Please provide your VIN after purchase to ensure we can program the module correctly for your vehicle before shipment. Installation is straightforward, though a security or anti-theft relearn procedure may be required after the part is installed.
Frequently Asked Questions
What is an ECM and what does it do?
The Engine Control Module (ECM), often called the engine computer, is the brain of your vehicle’s engine. It controls critical functions like fuel injection, ignition timing, and emissions systems to ensure optimal performance, fuel efficiency, and low emissions.
Why is VIN programming so important?
Programming the ECM with your vehicle’s VIN ensures it has the correct software and calibrations for your specific engine, transmission, and options. An unprogrammed module will not work correctly and can cause a no-start condition or other serious issues. Our service handles this for you.
How do I provide my VIN?
After you complete your purchase, simply send us a message with your 17-digit Vehicle Identification Number (VIN). You can find your VIN on your vehicle’s registration, insurance card, or on the driver’s side dashboard viewable through the windshield.
Is this a new part?
No, this is a genuine, used OEM part that has been sourced from a salvaged vehicle. Each unit is inspected to ensure it is in good working condition before being programmed and shipped.
Will I need to do anything after I install this ECM?
In many cases, you may need to perform a security relearn procedure (also known as a key relearn or anti-theft relearn). This procedure syncs the new ECM with your vehicle’s anti-theft system and can typically be done without special tools. Instructions are widely available online for your specific model.