Is Your Buick LaCrosse or Grand Prix Running Erratically?
Are you tired of dealing with a persistent check engine light, rough idling, stalling, or poor fuel economy in your vehicle? These frustrating issues often point directly to a failing Powertrain Control Module (PCM), the central computer that manages your engine’s performance. When the PCM starts to fail, it can make your otherwise reliable car feel unpredictable and unsafe. This isn’t just an inconvenience; it’s a problem that needs a definitive solution to get you back on the road with confidence.
Common Symptoms of a Failing PCM & Your Solution
A faulty engine computer can manifest in numerous ways. You might be experiencing one or more of the following problems:
- Check Engine Light: The light stays on, often with communication error codes (U-codes) or internal processor failure codes (P0600-P0606).
- No-Start or Hard-Start: The engine cranks but refuses to start, or only starts after multiple attempts.
- Poor Performance: Noticeable loss of power, hesitation during acceleration, and decreased fuel efficiency.
- Erratic Shifting: The transmission may shift harshly, at the wrong times, or not at all.
- Stalling: The engine may stall unexpectedly while driving or when coming to a stop.
This professionally programmed Powertrain Control Module is the direct-fit, reliable solution to these problems. We take the guesswork out of the repair by flashing the unit with the latest GM software updates, specifically matched to your vehicle’s unique Vehicle Identification Number (VIN). This ensures that once installed, your car’s engine, transmission, and all related systems communicate and operate exactly as the factory intended. Getting your car back to peak performance starts with a reliable, correctly programmed 2006-2009 Buick LaCrosse PCM 12600930.
Features & Benefits
- โ Plug-and-Play Installation: This unit arrives pre-programmed to your vehicle’s VIN. In most cases, this eliminates the need for an expensive trip to the dealership for additional programming.
- โ Latest GM Software: We flash each module with the newest updates from General Motors, ensuring optimal engine performance, fuel efficiency, and emissions control.
- โ Guaranteed Compatibility: A perfect replacement for part numbers 12600930, 12616866, 12619810, and 12509307 in the specified Buick and Pontiac models with the 3.8L engine.
- โ Solves Common Drivability Issues: Directly addresses and resolves issues caused by a failing computer, from check engine lights to no-start conditions.
- โ Purchase with Confidence: This unit is backed by our one-year replacement warranty.
An Expert’s Note on VIN Programming: We often see customers who’ve tried a generic, non-programmed module from a junkyard, only to find their problems get worse. A LaCrosse might have different transmission options, emissions equipment, or even tire sizes than a Grand Prix with the same engine. Programming the PCM to your specific VIN is not just a suggestionโit’s the critical step that tells the module exactly how to manage your unique vehicle. It’s the difference between a temporary fix and a lasting, reliable repair.
Don’t let a faulty computer keep your car off the road. By installing this correctly programmed 2006-2009 Buick LaCrosse PCM 12600930, you are restoring the core of your vehicle’s performance and reliability. Simply provide us with your VIN after your purchase, and we’ll handle the complex programming so you can get back to driving with peace of mind.
Frequently Asked Questions
Do I need to do any programming after I install this PCM?
Because this PCM comes programmed to your VIN, no further programming is required for engine or transmission operation. However, you will need to perform a simple security relearn procedure (also known as a CASE relearn or Passlock relearn) which can be done without any special tools. Instructions are readily available online for your specific model and typically involve a sequence of turning the key in the ignition.
Where is the PCM located on my 2007 Buick LaCrosse?
For the Buick LaCrosse, Lucerne, Allure, and Pontiac Grand Prix models covered by this part, the Electronic Control Module (PCM/ECM) is typically located in the lower part of the air cleaner box/housing in the engine bay. It’s a straightforward location for replacement.
How do I provide my VIN?
After you complete your purchase, simply send us a message with your vehicle’s 17-digit VIN. We cannot program and ship your part without it. You can find your VIN on your vehicle’s dashboard (visible through the windshield), on the driver’s side door jamb sticker, or on your insurance and registration documents.
Will this fix my specific check engine light codes?
This PCM is a direct solution for codes related to internal module failure, such as P0601, P0606, or communication errors. While it often resolves many other symptoms, it’s crucial to ensure your vehicle’s underlying mechanical or electrical issues (like a bad sensor or wiring) have been addressed first. A proper diagnosis is always the best first step.
What is the condition of this unit?
Each unit is a high-quality, tested component that has been meticulously inspected. It is then professionally programmed with the latest stable software from GM to ensure it meets or exceeds original factory specifications for performance and long-term reliability.