Programmed 2012 Buick LaCrosse ECM 12651994 | Engine Computer

### Programmed 2012 Buick LaCrosse ECM 12651994 \| Engine Computer   ## Restore Your Buick’s Smooth Performance and Reliability Is your 2012 Buick LaCrosse suffering from a persistent check engine light, erratic shifting, stalling, or a frustrating no-start condition? These are classic signs of a failing Engine Control Module (ECM), the central computer of your vehicle. A faulty ECM can disrupt everything from fuel economy to engine stability, taking away the comfort and confidence you expect from your car. This professionally programmed ECM is the definitive, hassle-free solution to get your vehicle back to peak operational condition. ### Common Symptoms & Your Direct Solution A failing ECM can manifest in numerous ways, often leading to confusing and costly diagnostic guesswork. If you’re experiencing any of the following, this module is your likely solution: - Unexplained Check Engine Light (CEL) with codes like P0601, P0606, or other internal processor faults. - Poor engine performance, including misfires, hesitation, or rough idling. - Decreased fuel efficiency. - Intermittent stalling or complete failure to start. - Harsh or incorrect automatic transmission shifting. - Communication errors with other vehicle modules. Our **Programmed 2012 Buick LaCrosse ECM 12651994** is more than just a replacement part—it’s a complete, ready-to-install remedy. We eliminate the need for an expensive trip to the dealership by pre-programming the unit to your vehicle’s specific Vehicle Identification Number (VIN) before it ships. ### Features & Tangible Benefits - ✔ **VIN-Matched Programming:** We flash the unit with the latest GM software updates specific to your VIN. This ensures perfect communication between all vehicle modules and restores factory performance. - ✔ **Plug-and-Play Installation:** Because the complex programming is done for you, installation is straightforward. In most cases, you can simply swap the module and perform a simple security relearn procedure, saving hundreds in labor costs. - ✔ **Restored Drivability:** A new, correctly programmed ECM restores your engine’s precise timing, fuel delivery, and emissions control, bringing back the smooth power and efficiency you expect. - ✔ **Guaranteed Compatibility:** This unit is a direct replacement for part numbers **12651994**, **12643248**, **12652814**, and AA69, ensuring a perfect fit and function for a wide range of GM vehicles. - ✔ **One-Year Replacement Coverage:** Drive with confidence. This unit is backed by our one-year replacement warranty. > **A Technician’s Insight:** After two decades of diagnosing complex vehicle electronics, I can’t overstate the importance of VIN-specific programming. A generic or mismatched module can create a cascade of new, hard-to-diagnose problems, from transmission damage to security system lockouts. We program each **Programmed 2012 Buick LaCrosse ECM 12651994** to ensure it integrates seamlessly, restoring the vehicle’s entire electronic ecosystem, not just fixing one symptom. It’s the key to a lasting, reliable repair. ### Frequently Asked Questions **Do I need to send my old computer back?** No, there is no core charge or need to return your old module. This is a direct purchase, simplifying the process for you. **Is any additional programming required after I install it?** This ECM comes fully programmed to your VIN. However, like any ECM replacement on this platform, you may need to perform a simple security relearn procedure (often called a ‘key relearn’ or ‘anti-theft relearn’). This procedure can typically be done without special tools and instructions are widely available online. **How do I provide my vehicle’s VIN?** You can provide your VIN during the checkout process. If you forget, we will contact you via email after your purchase to retrieve it. We cannot ship your order until we have your VIN to program the module correctly. **How can I be sure the ECM is my problem?** While the symptoms listed are strong indicators, we always recommend a proper diagnosis by a qualified mechanic. Common issues like bad grounds, faulty sensors, or wiring problems should be ruled out first to ensure the ECM is the root cause of the issue. **Will this fix my specific trouble code?** Yes, this **Programmed 2012 Buick LaCrosse ECM 12651994** is designed to resolve internal processor faults that trigger codes like P0606. However, if your codes are related to external sensors or circuits (e.g., an oxygen sensor code), you must repair those underlying issues as well. **What does the one-year replacement warranty cover?** The warranty covers the ECM unit itself. If the module fails due to an internal defect within one year of the purchase date, we will provide a replacement unit. #### Related Guide Engine Control Module (ECM) Replacement Guide – Learn about symptoms, testing, and replacement tips. Please enter it in the payment notes and save to ensure we receive it. Orders without a VIN within our 2-business-day handling period may be canceled, as programming cannot proceed without it. ### Shipping - **Processing Time:** Reliably shipped within 2-3 business days. ### Warranty Enjoy peace of mind with a **one-year replacement warranty** on this part, effective from the date you receive it. Labor costs are not covered. If the part fails within the warranty period, we’ll replace it with a comparable unit or refund your purchase price, ensuring a hassle-free experience. **Return Address:** **Highway71autoparts** **9131 Highway 71 NE** **Spicer, MN, 56288**

• Manufacturer Part Number: 12651994
• Country of Origin: United States
• Manufacturer Warranty: 1 Year
• Superseded Part Number: 12643248, 12652814, AA69, 12651994
• Year: 2012
• Genuine OEM: Yes
• Interchange Part Number: 590-02741
• PartNumber: 590
• Model: LACROSSE
• Brand: GM
• Hardware Type: E39