Restore Peak Performance to Your GM 3.8L Sedan
Is your Buick LaCrosse, Lucerne, or Pontiac Grand Prix suffering from frustrating issues like a persistent check engine light, rough idling, stalling, or poor fuel economy? These are classic signs of a failing Powertrain Control Module (PCM). Don’t let a faulty computer keep your reliable car off the road. This is the direct, professional-grade solution to restore your vehicle’s performance, driveability, and dependability, all without the exorbitant costs and hassle of a dealership visit.
Common Symptoms & Your Solution
A failing PCM can cause a wide range of confusing problems. If you’re experiencing any of the following, this module is the definitive fix you need:
- Persistent Check Engine Light (CEL)
- Error codes such as P0601, P0602, P0606, or other communication faults
- Unexplained stalling or difficulty starting
- Rough or erratic engine idle
- Poor acceleration and loss of power
- Noticeable decrease in fuel mileage
- Harsh or incorrect transmission shifting
This Programmed 2006-2009 LaCrosse 3.8L PCM 12619810 arrives ready for installation. We take care of the complex part by flashing the unit with the latest official GM software updates, tailored specifically to your vehicle’s Vehicle Identification Number (VIN). This ensures perfect communication between the engine, transmission, and all other onboard systems, restoring the smooth, efficient operation you expect.
Features & Benefits
- โ VIN-Programmed for Your Vehicle: We flash the module with your car’s specific VIN, eliminating the need for expensive dealership programming tools. It’s a true plug-and-drive solution.
- โ Loaded with Latest GM Updates: Your PCM will be updated with the newest software from General Motors, ensuring optimal fuel efficiency, emissions compliance, and performance.
- โ Restores Original Performance: Eliminate engine hesitations, rough shifting, and other driveability issues caused by a faulty computer.
- โ Direct-Fit Replacement: Engineered to be a perfect match for the original unit, ensuring a straightforward installation in the factory location (lower part of the air cleaner box).
- โ Cost-Effective Dealership Alternative: Get a fully functional, programmed module at a fraction of the cost of sourcing and programming one at a new car dealership.
- โ Backed by Our Guarantee: This unit is backed by our one-year replacement warranty. Drive with confidence knowing your purchase is protected.
Expert Insight: The Critical Role of VIN Programming
Many people assume you can just swap a used computer from another car. This is a critical mistake with modern vehicles. The PCM is the ‘brain’ and is tied directly to your car’s unique VIN for security and systems communication. Installing a non-programmed unit can lead to a no-start condition due to the anti-theft system, incorrect transmission shift points, or even engine damage. Our process of programming this Programmed 2006-2009 LaCrosse 3.8L PCM 12619810 to your specific VIN before it ships ensures all vehicle systems communicate correctly from the moment you turn the key, saving you from immense frustration and additional diagnostic costs.
Frequently Asked Questions
Do I need to do anything after I install the PCM?
In most cases, you will need to perform a simple security relearn procedure, which can typically be done without special tools and involves a sequence of key turns. This syncs the new PCM with your vehicle’s anti-theft system. We can provide instructions for this simple process.
Where is the PCM located on my vehicle?
For the specified Buick and Pontiac models, the Electronic Control Module (PCM) is conveniently located in the lower part of the air cleaner filter box/housing in the engine bay, making it relatively easy to access for replacement.
How do I provide my VIN?
After you complete your purchase, you will need to send us your 17-digit VIN. You can typically add it as a note during checkout or send it to us in a message referencing your order number. We cannot ship your order until we receive the VIN.
Is this compatible with models besides the LaCrosse?
Yes. This Programmed 2006-2009 LaCrosse 3.8L PCM 12619810 is also the correct part for the 2006-2008 Buick Lucerne, 2006-2009 Buick Allure, and 2006-2008 Pontiac Grand Prix, as long as the vehicle is equipped with the 3.8L engine.
What if I have issues after installation?
Our goal is your complete satisfaction. If you encounter any problems, please contact our support team immediately. We have experienced technicians who can help diagnose the issue, and remember, this unit is backed by our one-year replacement warranty.