Restore Peak Performance to Your GM 3.8L Vehicle
Is your Grand Prix, Lucerne, or LaCrosse plagued by frustrating electrical issues, a persistent check engine light, or unpredictable stalling? You’re not just looking for a part; you’re looking for a permanent solution to get your reliable daily driver back on the road. This pre-programmed Powertrain Control Module (PCM) is the definitive answer to restore your vehicle’s performance and your confidence behind the wheel. We flash the unit with the latest GM software updates using your vehicle’s unique VIN, ensuring it works perfectly right out of the box.
Common Symptoms & Your Solution
A failing engine computer can cause a wide range of baffling problems that can make your vehicle unreliable and unsafe. If you’re experiencing any of the following, this module is the solution you need:
- Check Engine Light (CEL) Illumination: Particularly for codes like P0601, P0602, P0605, or P0606, which indicate an internal module failure.
- Engine Stalling or Misfiring: The engine may stall intermittently while driving or at idle, often without warning.
- No-Start Condition: The engine cranks but refuses to start due to a lack of fuel or spark command from the PCM.
- Poor Fuel Economy: Inaccurate sensor readings or fuel calculations can cause a sudden drop in MPG.
- Harsh or Erratic Shifting: The PCM plays a critical role in transmission control, and a faulty one can cause shifting problems.
- Communication Errors: Your mechanic’s scan tool may be unable to communicate with the engine computer.
Replacing your old module with our professionally programmed Grand Prix 3.8L PCM 12619810 resolves these issues at their source, providing a dependable and lasting repair.
An Expert’s Note on VIN Programming: Why is VIN-programming so critical? Your vehicle isn’t just a collection of parts; it’s a network of computers that must communicate flawlessly. A generic, non-programmed module is like a stranger trying to join a private conversation—it leads to confusion, errors, and poor performance. By flashing this module with your car’s specific VIN, we ensure it has the correct software, security information, and operational parameters. This guarantees seamless integration with your engine, transmission, and anti-theft system, delivering the same reliability as the day your car left the factory.
Features & Tangible Benefits
- ✔ VIN-Programmed for Your Vehicle: Arrives ready for a true plug-and-play installation, saving you a costly trip to the dealership for programming.
- ✔ Loaded with Latest GM Software: Ensures optimal engine performance, fuel efficiency, and emissions control based on the newest factory updates.
- ✔ Direct-Fit Replacement: Guarantees a perfect fit in the original location (lower air cleaner housing) with no modifications required.
- ✔ Quality Inspected: Each module is thoroughly inspected to ensure function and reliability, getting you back on the road with confidence.
- ✔ This unit is backed by our one-year replacement warranty.
Frequently Asked Questions
Do I need to do any programming myself?
No. This module is completely plug-and-play. We program it using the VIN you provide, so it’s ready for installation as soon as you receive it. In some cases, a simple security relearn procedure may be necessary, which takes a few minutes and requires no special tools.
Where do I provide my vehicle’s VIN?
After you complete your purchase, you can send us a message with your 17-digit VIN. You can also add it as a note during the checkout process. We cannot ship your part until we receive the VIN.
How can I be sure this fits my car?
This module fits 2006-2008 Buick Lucerne, 2006-2009 Buick LaCrosse/Allure, and 2006-2008 Pontiac Grand Prix models equipped with the 3.8L V6 engine. Providing your VIN is the best way to guarantee a 100% perfect match for your specific vehicle and its options.
What is a security relearn procedure?
This is a simple process that syncs the new PCM with your car’s anti-theft system. It typically involves turning the key to the ‘ON’ position for 10-15 minutes, then off, and repeating two more times. Instructions are readily available online for your specific model, and it requires no tools.
Is this a genuine GM part?
This is a genuine, original equipment (OE) module that has been professionally programmed. It is the correct Grand Prix 3.8L PCM 12619810 specified for your vehicle, ensuring proper function and compatibility.