Restore Your Buick’s Smooth, Reliable Performance
Is your Buick Lucerne running rough, stalling unexpectedly, or showing a persistent check engine light? A faulty Engine Control Module (ECM) is often the hidden cause of these frustrating and complex issues, leaving you without the comfortable, dependable car you rely on. This direct-fit, professionally programmed ECM is the definitive solution to restore your vehicle’s factory performance and get you back on the road with complete peace of mind.
Common Symptoms & Your Solution
If you’re experiencing issues like poor fuel economy, random engine misfires, harsh transmission shifting, or even a no-start condition, your vehicle’s computer may be failing. Diagnostic Trouble Codes (DTCs) such as P0601, P0602, or P0606 often point directly to an internal module failure. This replacement unit is the most effective way to resolve those problems permanently. We make the process simple: provide us with your VIN, and we handle the complex programming. This is the most reliable way to fix your 2009-2011 Buick Lucerne ECM and avoid a costly trip to the dealership.
- โ Plug & Drive Installation: Arrives fully programmed to your vehicle’s specific VIN. No additional programming or dealer visits are required.
- โ Latest GM Software: Flashed with the newest vehicle-specific software updates from GM for optimal fuel efficiency, emissions, and performance.
- โ Solves Frustrating Issues: The definitive fix for common issues like stalling, misfires, poor idling, and communication-related trouble codes.
- โ Direct OEM Fit: Engineered to match the original factory part, ensuring a perfect fit and seamless connection with your vehicle’s existing wiring harnesses.
- โ Broad Compatibility: This computer is a direct replacement for multiple service numbers, including 12636659, 12628993, 12630464, and more, ensuring wide application coverage.
- โ Guaranteed Protection: This unit is backed by our one-year replacement warranty.
Expert Insight: The Critical Role of VIN Programming
Many don’t realize that an ECM is the ‘brain’ of the vehicle, communicating with everything from the engine and transmission to the anti-theft system. Simply swapping a used computer from another car won’t work. Our VIN-specific programming ensures that this new ‘brain’ is a perfect match for your Lucerne’s unique electronic nervous system, guaranteeing seamless communication and proper function of all vehicle systems right out of the box. It’s the difference between a temporary fix and a lasting repair for your 2009-2011 Buick Lucerne ECM.
By installing this pre-programmed engine computer, you are not just replacing a part; you are restoring the core of your vehicle’s operational intelligence. Regain the smooth acceleration, consistent performance, and reliability you expect from your Buick. This is a straightforward repair that a competent home mechanic or any professional technician can perform quickly. Order your 2009-2011 Buick Lucerne ECM today and get your car running like new again.
Frequently Asked Questions
Do I need a dealership to program this ECM?
Absolutely not. This ECM arrives at your door fully programmed to your vehicle’s VIN. It is ready for installation right out of the box, saving you time and the high cost of dealership programming.
What information do you need from me?
After you place your order, you will need to provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN). This allows us to flash the computer with the exact software and calibrations for your specific car.
Is this a difficult part to install?
For someone with basic mechanical skills, the installation is very straightforward. It typically involves disconnecting the battery, locating the old ECM (on the Lucerne, it’s usually on the lower part of the air cleaner box), unplugging the electrical connectors, swapping the module, and reconnecting everything. No special tools are required.
How do I know for sure that my ECM is the problem?
Common signs include a check engine light with codes like P0601-P0606, engine stalling, erratic behavior, or a complete no-start condition. While these are strong indicators, we always recommend having a professional mechanic perform a full vehicle diagnostic to confirm the ECM is the point of failure before ordering.
Will this computer fit other GM vehicles?
Yes, this ECM is compatible with a wide range of GM vehicles from 2009-2012, including the Cadillac DTS, Chevy Colorado, GMC Canyon, and Hummer H3, among others. Please check the fitment list on this page to confirm compatibility with your specific make, model, and engine.