Is Your Buick Regal Experiencing Driveability Issues?
If your 2011 Buick Regal is suffering from a persistent check engine light, erratic engine behavior, poor fuel economy, or even a no-start condition, a failing Engine Control Module (ECM) is a likely culprit. As the central computer for your vehicle’s engine, the ECM is responsible for managing everything from fuel injection and ignition timing to emissions controls and transmission shifting. When it begins to fail, it can cause a cascade of frustrating and difficult-to-diagnose problems. This direct-fit replacement ECM, part number 12642665, is the definitive solution to restore your vehicle’s performance and reliability.
Symptoms of a Failing 2011 Regal Engine Module
- ✔ Persistent Check Engine Light (CEL) with various trouble codes.
- ✔ Engine stalling, stumbling, or hesitating during acceleration.
- ✔ Noticeable decrease in fuel efficiency.
- ✔ Rough or inconsistent idling.
- ✔ Harsh or erratic automatic transmission shifting.
- ✔ Complete no-start or intermittent starting problems.
- ✔ Communication errors with diagnostic scan tools.
Plug-and-Play Solution with VIN Programming
Don’t waste time and money at the dealership with a blank module that requires expensive programming. We take the hassle out of the repair process. When you purchase this ECM, we will flash it with the latest official GM software updates specifically for your vehicle. All you need to do is provide us with your vehicle’s 17-digit VIN (Vehicle Identification Number) during or after checkout. This ensures that the module is a perfect match for your car’s specific configuration, making installation as simple as possible. This is the most reliable way to ensure your 2011 Regal Engine Module functions correctly from the moment it’s installed.
This module is a direct replacement for a wide range of GM vehicles and is compatible with multiple part numbers, including 12616889, 12630908, 12637106, 12642665, 12650256, and 12651993. By replacing your old, faulty unit with this pre-programmed module, you are not just fixing a problem—you are restoring the precise factory-intended operation of your vehicle’s powertrain.
Frequently Asked Questions
What is an ECM and why is it important?
The Engine Control Module (ECM) is your car’s main computer. It controls the engine’s fuel mixture, ignition timing, and emissions systems to ensure optimal performance, fuel economy, and low emissions. A functioning ECM is critical for your car to run properly.
Is this part difficult to install?
The physical installation is straightforward for someone with basic mechanical skills, typically involving disconnecting the battery and removing a few bolts and electrical connectors. Since we pre-program the module to your VIN, you avoid the need for specialized dealer tools for software flashing.
Will I need to do anything after installing this ECM?
In many cases, you may need to perform a security relearn procedure, also known as a Passlock or anti-theft relearn. This can typically be done without special tools and involves a sequence of key turns. Instructions are widely available online for your specific model.
How do I provide my VIN for programming?
You can add your 17-digit VIN in the notes section during checkout or send it to us in a message after you complete your purchase. We cannot ship your part until we receive the VIN to program it correctly.
Will this fix my specific problem?
This ECM is a direct solution for failures of the module itself. While it resolves the common symptoms listed, it’s essential to ensure your vehicle’s issues are not caused by other components like faulty wiring or sensors. Proper diagnosis is always recommended.