Restore Your Buick’s Peak Performance and Reliability
Is your 2010-2011 Buick LaCrosse running rough, stalling unexpectedly, or displaying a persistent Check Engine Light? These frustrating issues often point to a failing Engine Control Module (ECM), the central computer of your vehicle. Don’t let a faulty module compromise the smooth, comfortable ride you expect. This professionally programmed ECM is the definitive solution to get your LaCrosse back on the road with renewed confidence and factory-spec performance.
Common Symptoms of a Failing ECM & Your Direct Solution
A failing engine computer can cause a wide range of confusing and intermittent problems. If you’re experiencing any of the following, it’s a strong indicator that your ECM needs attention. This unit is designed to resolve these exact issues:
- Persistent Check Engine Light (CEL)
- Unexplained engine stalling or hesitation
- Rough or erratic idling
- Noticeable decrease in fuel economy
- Difficulty starting the vehicle or a no-start condition
- Communication error codes (U-codes) with diagnostic scanners
- Erratic transmission shifting behavior
Our solution is simple and effective. We provide a replacement 2010-2011 Buick LaCrosse ECM that is meticulously programmed to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. This ensures perfect compatibility and function, just like the original part from the factory.
Features & Benefits You Can Count On
- ✔ VIN-Programmed for Your Vehicle: We flash the module with the latest GM software updates using your VIN, ensuring it works perfectly with your LaCrosse’s specific systems right out of the box.
- ✔ Eliminate Guesswork: This is a direct-fit, professionally prepared solution, saving you the time, cost, and hassle of a dealership visit for programming.
- ✔ Restore Original Performance: Regain the smooth acceleration, stable idle, and optimal fuel efficiency your Buick was designed to deliver.
- ✔ Broad Compatibility: This module is a direct replacement for multiple part numbers, including 19300015, 19300014, 12617230, 12636355, and 12635019.
- ✔ Peace of Mind Included: This unit is backed by our one-year replacement warranty.
Expert Insight: The Importance of the Immobilizer Transfer
For vehicles like the Buick LaCrosse and Chevy Camaro, the ECM is integrated with the vehicle’s anti-theft (immobilizer) system. It’s not just about engine data; it’s about security. To make your new ECM truly ‘plug-and-play,’ we need to transfer this unique security key from your old module to the new one. That’s why we require your original unit. This critical step prevents security lockouts and ensures your key fob and starting system function seamlessly, a detail that many overlook but is essential for a successful repair.
By purchasing this 2010-2011 Buick LaCrosse ECM, you’re not just buying a part; you’re investing in a reliable, expertly prepared solution that gets the job done right. We handle the complex programming so you can focus on getting your vehicle back to its best.
Frequently Asked Questions
Do I need to do any programming myself?
No. We program the module to your vehicle’s VIN before shipping. For the Buick LaCrosse, the only additional step is sending us your original ECM so we can transfer the immobilizer data, making the new unit completely plug-and-play upon arrival.
Why do I need to send in my old ECM for my LaCrosse?
Your LaCrosse’s ECM contains vital anti-theft security information that is unique to your specific car and keys. To ensure the replacement module works without triggering the security system, we must transfer this data from your old unit to the new one. We will contact you with simple instructions after your purchase.
How do I provide my VIN?
After you complete your purchase, you will need to send us your vehicle’s 17-digit VIN. You can typically find this on your vehicle’s registration, insurance card, or on a small plate on the driver’s side of the dashboard visible through the windshield.
Will this fit other vehicles besides the LaCrosse?
Yes, this ECM is compatible with a range of 2010-2011 GM vehicles with the 3.6L engine, including the Chevy Traverse, Cadillac CTS & STS, GMC Acadia, and Saturn Outlook. Please check the fitment list on this page to confirm for your specific model.
What if I’m not sure the ECM is the problem?
While this part solves many common issues, we always recommend a proper diagnosis by a qualified mechanic. Common symptoms like stalling or a check engine light can have multiple causes. Confirming the ECM is faulty before purchase will ensure a smooth repair process.