Restore Your Enclave’s Smooth, Reliable Performance
Is your 2012 Buick Enclave suffering from a persistent check engine light, erratic shifting, or a frustrating no-start condition? These are common signs of a failing Engine Control Module (ECM), the critical computer that manages your vehicle’s engine performance and efficiency. Don’t let a faulty ECM compromise your family’s safety and your peace of mind. This professionally programmed ECM is the definitive, hassle-free solution to get your Enclave running like new again.
Common Symptoms & Your Solution
A failing engine computer can cause a wide range of confusing issues. If you’re experiencing any of the following, this module is the solution you need:
- Persistent Check Engine Light (CEL)
- Diagnostic Trouble Codes (DTCs) such as P0601, P0606, or U0100
- Poor engine performance, hesitation, or stalling
- Reduced fuel economy
- Harsh or incorrect transmission shifting
- Complete no-start or intermittent starting problems
By replacing your old unit with this pre-programmed 2012 Buick Enclave ECM 12643248, you are directly addressing the root cause of these electronic failures and restoring the precise communication your vehicle’s systems depend on.
Features & Benefits
- ✔ Plug-and-Play Installation: This ECM arrives programmed to your vehicle’s specific VIN. No complicated dealership visits or expensive programming tools are required.
- ✔ Latest GM Software: We flash the module with the most current software updates from GM, ensuring optimal performance, fuel efficiency, and emissions control.
- ✔ Direct-Fit Solution: This unit is a direct replacement for multiple part numbers, including 12651994, 12643248, and 12652814, guaranteeing a perfect fit and function.
- ✔ Restored Drivability: Eliminate stalling, rough idling, and poor acceleration to regain the smooth, responsive driving experience you expect from your Buick.
- ✔ Cost-Effective Repair: Get a high-quality, reliable solution without the high costs associated with new parts and programming services at a dealership.
- ✔ Worry-Free Purchase: This unit is backed by our one-year replacement warranty.
An Expert’s Note on VIN Programming
“In modern vehicles like your Enclave, the ECM is the central hub of a complex network. It communicates with the transmission, anti-lock brakes, security system, and more. That’s why VIN programming isn’t just a feature—it’s essential. We sync this module to your vehicle’s unique identity, ensuring all systems, including the critical anti-theft immobilizer, work together seamlessly from the moment you install it. A generic, unprogrammed module from a salvage yard simply cannot provide this level of integration and will often prevent the vehicle from starting at all.”
Take control of your vehicle’s health and restore its core performance. Ordering this pre-programmed 2012 Buick Enclave ECM 12643248 is the most reliable and efficient way to solve complex electronic issues and get back on the road with confidence. We make the process simple: just provide your VIN during checkout, and we handle the rest.
Frequently Asked Questions
Is this ECM really plug-and-play?
Yes. Because we program the module to your specific VIN before shipping, it is ready for installation upon arrival. In some cases, a simple automated procedure like a security relearn may be required, which can typically be done without any special tools.
How do I provide my vehicle’s VIN?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). We cannot program and ship your part without it. Please double-check it for accuracy to ensure a perfect match.
Will this fix my check engine light?
This ECM will resolve any check engine light and diagnostic trouble codes directly caused by a faulty engine computer. However, if the light is on due to other issues (e.g., a bad sensor or mechanical problem), those underlying problems will still need to be addressed separately.
Does this fit vehicles other than the 2012 Buick Enclave?
Absolutely. This ECM is compatible with a wide range of GM vehicles, including models from Cadillac, Chevrolet, GMC, and Buick. Please refer to the detailed fitment list on this page or contact us with your VIN to confirm compatibility for your specific vehicle.
What does ‘flashed with the latest updates’ mean?
Vehicle manufacturers like GM often release software improvements over the life of a vehicle to enhance performance, improve fuel economy, or fix minor bugs. ‘Flashing’ means we load your ECM with this very latest and best version of the software available for your specific VIN.