Restore Your Vehicle’s Reliability and Performance
Is your Grand Prix, Lucerne, or LaCrosse suffering from confusing electrical issues, a persistent check engine light, or poor engine performance? A failing Powertrain Control Module (PCM) is often the hidden culprit, disrupting communication between your engine’s critical systems and leaving you frustrated. This pre-programmed engine computer is the direct-fit, reliable solution to restore your vehicle’s factory performance and get you back on the road with confidence and peace of mind.
Common Symptoms of a Failing 3.8L PCM & Your Solution
If you’re experiencing any of the following issues, a faulty engine computer is the likely cause. This module is the definitive fix for problems such as:
- Persistent Check Engine Light (CEL)
- Error codes such as P0601, P0602, P0605, or P0606
- Unexplained stalling or engine hesitation
- Rough or erratic idling
- Poor fuel economy
- Failure to start
- Transmission shifting problems
- Inability to communicate with the module using a scan tool
Instead of struggling with a problematic vehicle, our expertly prepared Programmed 2006-2008 Grand Prix PCM provides a simple and effective solution, arriving ready for installation right out of the box.
Features & Benefits
- ✔ Plug & Drive Installation: Arrives professionally programmed to your vehicle’s exact VIN. No complicated dealer trips or expensive programming tools are required for installation.
- ✔ Optimized Performance: Flashed with the latest official GM software updates to ensure peak engine efficiency, improved fuel economy, and smooth transmission shifting.
- ✔ Guaranteed Compatibility: A direct-fit replacement for part numbers 12600930, 12616866, 12619810, and 12509307, ensuring a perfect match for your 3.8L Grand Prix, Lucerne, or LaCrosse.
- ✔ Tested for Reliability: Each module undergoes rigorous functional testing to ensure it meets or exceeds original equipment standards for long-lasting dependability.
- ✔ Purchase with Confidence: This unit is backed by our one-year replacement warranty.
Expert Insight: A customer with a 2007 Grand Prix was chasing a random stalling issue for months. They replaced sensors and checked wiring, but the problem persisted. The issue was an intermittent internal failure in the original PCM that only occurred when the engine was hot. Installing our Programmed 2006-2008 Grand Prix PCM solved the issue in under 30 minutes. Don’t waste time and money on guesswork; a faulty computer can mimic many other problems, and starting with the ‘brain’ of the engine is often the fastest path to a correct repair.
Frequently Asked Questions
Do I need to do anything after I install it?
In most cases, this is a plug-and-drive solution. However, some vehicles may require a security relearn procedure (often called a CASE relearn or Passlock relearn), which can typically be done without special tools. Instructions for this simple procedure are widely available online for your specific model.
How do I provide my VIN?
After you complete your purchase, simply send us a message with your 17-digit Vehicle Identification Number (VIN). We cannot program and ship your part without it. You can find your VIN on your vehicle’s dashboard (visible through the windshield) or on your registration and insurance documents.
Is this a new part?
This is a high-quality, verified original equipment part that has been expertly prepared and programmed for your vehicle. Each unit is thoroughly tested to ensure it functions to factory specifications.
Will this fix my check engine light?
If the check engine light is caused by an internal fault in the PCM (like error code P0601), then yes, this will resolve the issue. However, if the light is on due to a separate faulty sensor or mechanical problem, that issue will still need to be addressed. This module will ensure the vehicle’s computer is functioning correctly.
What vehicles does this PCM fit?
This PCM is compatible with the 2006-2008 Buick Lucerne, 2006-2008 Pontiac Grand Prix, and 2006-2009 Buick LaCrosse/Allure, specifically for models equipped with the 3.8L engine.
