Is Your Buick LaCrosse Acting Up? Get a Permanent Fix.
If you’re dealing with a persistent Check Engine Light, rough idling, stalling, or a no-start condition in your 2010 or 2011 Buick LaCrosse, a failing Engine Control Module (ECM) is a very likely culprit. As the central computer for your vehicle’s engine, its health is critical for performance, fuel economy, and reliability. Don’t let a faulty module leave you stranded or guessing. This is the direct, reliable solution you need.
We take the guesswork and dealership hassle out of the equation. This ECM is meticulously tested and comes programmed with the latest GM software updates specifically for your vehicle’s VIN. This isn’t just a part; it’s a complete, ready-to-install solution.
Why Choose Our Programmed ECM?
- โ VIN-Programmed for Your LaCrosse: We flash the module with your car’s specific VIN, ensuring it communicates perfectly with the other systems in your vehicle right out of the box.
- โ Latest GM Software: Your ECM will be loaded with the most current software from General Motors, which often includes fixes for drivability issues and performance improvements that your old module never had.
- โ No Dealer Visit Required: Save hundreds of dollars and the time spent at a dealership. Our programming service means this module is ready for a simple, DIY-friendly installation.
- โ Restores Original Performance: A new, properly functioning ECM can resolve a wide range of issues, restoring lost power, improving fuel efficiency, and ensuring smooth engine operation.
Expert Pro Tip from a 20-Year Technician
Before you install your new ECM, take a moment to inspect the main electrical connector harness on your vehicle. Over the years, I’ve seen countless cases where a tiny bit of corrosion or a slightly bent pin in the connector was the real source of the problem, causing intermittent communication faults that mimic a bad module. Use a small flashlight to look inside the connector. If you see any green or white powder (corrosion), clean it carefully with a dedicated electronics cleaner and a small brush. Ensuring a clean, solid connection is the single best thing you can do to guarantee a successful repair and prevent future issues.
Simple Installation for Your 2010-2011 LaCrosse ECM
You don’t need to be a master mechanic to replace this module. With basic hand tools, you can get your car back on the road in under an hour. For the 2010-2011 LaCrosse, the ECM is typically located in the LH (driver’s side) engine compartment.
- Safety First: Disconnect the negative terminal from your car’s battery and wait a few minutes for the system to discharge.
- Locate the ECM: Find the module in the driver’s side engine compartment. It’s a metal box with large electrical connectors.
- Disconnect and Remove: Carefully unlatch and remove the electrical connectors. Then, unbolt the old ECM from its mounting bracket.
- Install the New Module: Bolt the new, pre-programmed ECM into place. Firmly reconnect the electrical connectors until they click and lock.
- Reconnect Power: Reattach the negative battery terminal. Your vehicle may need to complete a brief idle relearn procedure, which usually involves starting the engine and letting it idle for a few minutes.
Guaranteed Fitment & Part Number Compatibility
This Engine Control Module is a direct replacement for a wide range of GM vehicles and is compatible with several part numbers. Please verify your part number or contact us with your VIN to confirm fitment.
This module replaces the following part numbers: 12616889, 12630908, 12637106, 12642665, 12650256, 12651993
Fits these vehicles (and more):
- 2010-2011 Buick LaCrosse (2.4L, 3.0L)
- 2010 Buick Allure (2.4L, 3.0L)
- 2012 Chevrolet Camaro (3.6L)
- 2012 Chevrolet Captiva Sport
- 2012 Chevrolet Impala
- 2012-2013 Chevrolet Orlando
- 2010-2011 Chevrolet Equinox
- 2010-2012 Cadillac CTS (3.0L, 3.6L)
- 2010-2011 Cadillac SRX (3.0L)
- 2010-2011 GMC Terrain
- 2011 Buick Regal
- 2010-2011 Saab 9-5 (2.0L)
After your purchase, simply send us a message with your vehicle’s 17-digit VIN, and we’ll handle the programming before shipping it directly to you.