Restore Your Buick’s Smooth, Reliable Performance
Is your Buick Lucerne experiencing frustrating issues like a persistent check engine light, rough idling, stalling, or a complete no-start condition? These are classic signs of a failing Engine Control Module (ECM), the central computer that manages your vehicle’s engine performance. Don’t let a faulty computer keep you off the road. This professionally programmed 2009-2011 Buick Lucerne ECM is the definitive solution to restore the dependable performance you expect from your vehicle.
Common Symptoms of a Failing ECM & Your Solution
A failing ECM can cause a wide range of confusing and intermittent problems. If you’re noticing any of the following, it’s highly likely your engine computer is the culprit:
- Persistent Check Engine Light (CEL) with codes like P0601, P0606, or other communication errors.
- Unexplained drops in fuel economy.
- Engine stalling, sputtering, or misfiring.
- Difficulty starting the vehicle or a no-start condition.
- Poor transmission shifting or erratic behavior.
This module is your direct-fit, easy-to-install solution. We take the guesswork and high dealership costs out of the equation by pre-programming the unit specifically for your vehicle before it ever leaves our facility.
Features & Benefits
- ✔ VIN-Programmed for Your Vehicle: This isn’t a generic, one-size-fits-all part. We flash the module with the latest GM software updates using your vehicle’s unique VIN, ensuring perfect communication and function right out of the box.
- ✔ Plug & Play Installation: Because the programming is done for you, there’s no need for an expensive trip to the dealership. In most cases, installation is a simple bolt-in process that gets you back on the road quickly.
- ✔ Restores Original Performance: Eliminate rough running and poor fuel mileage. This ECM restores your engine’s factory settings for optimal power, efficiency, and smooth operation.
- ✔ Broad Compatibility: This unit is a direct replacement for multiple service numbers, including 12636659, 12639300, 12628993, and more, guaranteeing a perfect match for your 2009-2011 Buick Lucerne ECM.
- ✔ Peace of Mind Guarantee: This unit is backed by our one-year replacement warranty. Drive with confidence knowing your purchase is protected.
An Expert’s Note on VIN Programming
Many people are tempted to grab a used computer from a salvage yard to save a few dollars, but this is often a recipe for disaster. A module from another vehicle is like a key for a different house—it simply won’t work. It has the wrong security information, engine parameters, and option configurations. Our VIN programming service ensures the ECM is a perfect digital handshake for your exact car, preventing security lockouts and performance issues that non-programmed modules cause. It’s the critical step that makes this a true, hassle-free solution.
Frequently Asked Questions
Do I need to do any programming or flashing myself?
Absolutely not. The main benefit of our service is that we handle all the programming for you. We use your VIN to load the correct GM-certified software and key data onto the 2009-2011 Buick Lucerne ECM before we ship it. It arrives ready for installation.
How do I provide my Vehicle Identification Number (VIN)?
After you place your order, you will need to send us your 17-digit VIN. You can typically find this on your vehicle’s registration, insurance card, or on the driver’s side dashboard visible through the windshield.
Is this a brand new part from the dealer?
This is a quality, tested replacement Engine Control Module that meets or exceeds original equipment specifications. It is fully inspected and programmed with the newest software from GM to ensure reliability and performance.
Will this fix my car’s specific problem?
This module is a guaranteed fix for problems directly caused by a faulty ECM. While it resolves the most common electronic engine issues, we always recommend having a qualified mechanic diagnose your vehicle to confirm the ECM is the point of failure before ordering.
What is your warranty policy?
We stand behind our work. This unit is backed by our one-year replacement warranty, giving you confidence and peace of mind with your purchase.
Is any additional setup required after installation?
In some vehicles, a security or CASE relearn procedure may be necessary after installation. This is a simple process that can often be done without special tools, and instructions can be readily found for your specific model. This ensures all vehicle systems communicate correctly with the new module.