2007-2009 Silverado 1500 Engine Control Module 12639669 Programmed To Your VIN

Get Your Truck Running Right Again!

This is a direct-fit Powertrain Control Module for 2007-2009 Silverado 1500 and other GM models. We pre-program it to your vehicle’s VIN with the latest software updates, ensuring a simple installation and restored performance. Fix stalling, poor mileage, and check engine lights today!

$104.95

+11.99 USPS Priority Shipping

Availability: In stock



Guaranteed Safe Checkout

Restore Peak Performance to Your GM Vehicle

Is your 2007-2009 Chevrolet Silverado, Sierra, or other compatible GM vehicle suffering from frustrating and unpredictable issues? A faulty Powertrain Control Module (PCM), also known as an Electronic Control Module (ECM), is often the culprit behind poor engine performance, erratic shifting, false warning lights, and even no-start conditions. This replacement PCM, service number 12639669 (interchangeable with 12597125 and others), is the definitive solution to get your vehicle running reliably again.

The PCM is the central computer of your vehicle, responsible for managing the engine, transmission, and dozens of other critical systems. When it fails, it can create a cascade of problems that are difficult to diagnose. Instead of chasing down individual sensor codes or paying for expensive dealership diagnostics, replacing the module itself is often the most direct and effective repair. We take the guesswork out of the process by pre-programming this module specifically for your vehicle using your VIN. This ensures that it arrives with the latest GM software updates, ready for a straightforward installation.

From the Diagnostic Bay

We had a 2008 Sierra 1500 with the 4.3L V6 come in that was driving the owner crazy. It would randomly stall at stoplights, but only when the engine was warm. There were no consistent trouble codes, just a generic U0100 ‘Lost Communication’ code that would pop up occasionally. We checked wiring, grounds, and connectors for hours. Everything seemed fine. On a hunch, we swapped in a known-good PCM. The truck ran perfectly for a week straight. The original PCM had an internal intermittent fault that only showed up under specific temperature conditions. This is a classic example of how a failing computer can create phantom issues that even seasoned techs struggle to pinpoint. A replacement module solved the problem instantly.

Why Choose Our Pre-Programmed 2007-2009 Silverado PCM?

Getting your truck back on the road shouldn’t be complicated. Our process is designed to be simple and effective. When you order, you provide us with your vehicle’s VIN. Our technicians then use that information to flash the module with the precise factory software for your truck’s specific engine, transmission, and options. This isn’t a generic, one-size-fits-all solution; it’s a tailored component that communicates perfectly with your vehicle’s other systems right out of the box. This critical programming step ensures proper engine timing, fuel delivery, transmission shift points, and emissions control.

Common Symptoms of a Failing Powertrain Control Module

  • ✔ Check Engine Light is on with various, often inconsistent, trouble codes.
  • ✔ Engine stalling, stumbling, or misfiring for no apparent reason.
  • ✔ Noticeable decrease in fuel economy.
  • ✔ Harsh or erratic automatic transmission shifting.
  • ✔ The vehicle won’t start, even with a good battery and starter.
  • ✔ Communication errors with diagnostic scan tools.
  • ✔ Other warning lights (ABS, Traction Control) illuminating incorrectly.

Guaranteed Compatibility

This module is a direct replacement for a wide range of GM vehicles. It is the correct fit for units with the following service numbers: 12639669, 12597125, 12612397, DL216140, 12594750, 12629019, 12635902, and 12611549. It fits numerous models including the Silverado, Sierra, Malibu, Cobalt, HHR, G6, and more. Please verify your service number or consult the detailed fitment list to ensure this is the correct part for your application.

Installation Process

Installation is generally straightforward. The module is typically located in the engine bay, often under the battery tray or near the air cleaner box. After disconnecting the battery, you can unbolt the old module, disconnect the wiring harnesses, and install the new one. In many GM vehicles, a security relearn procedure (often called a ‘key relearn’ or ‘anti-theft relearn’) is required after installation for the vehicle to start. This procedure does not require special tools and can usually be completed in about 30 minutes by following simple instructions found in your owner’s manual or online.

Frequently Asked Questions

Do I need to do anything after installing this PCM?

Because we program the module to your VIN, it is ready for installation. However, you will likely need to perform a security relearn procedure. This syncs the new PCM with your vehicle’s anti-theft system and keys. It’s a simple process that typically involves turning the key to the ‘ON’ position for 10-15 minutes, three times in a row. Specific instructions can be found online for your model.

Is this a plug-and-play part?

Yes, this is a plug-and-play solution in the sense that no further programming or flashing is required at a dealership. Once the security relearn is complete, your vehicle will be ready to drive. The physical installation involves disconnecting the old unit and plugging in the new one.

Where do I find my VIN?

Your 17-digit Vehicle Identification Number (VIN) can be found on your vehicle’s registration, insurance card, or on the driver’s side of the dashboard, visible through the windshield.

What if I have the wrong part number?

This module replaces several service numbers, including 12597125, 12612397, and 12639669. As long as the part number on your original module is on our compatibility list, this unit will work. The key is providing the correct VIN so we can load the correct software for your specific vehicle build.

Will this fix my transmission shifting problems?

The PCM controls both the engine and the transmission. If your shifting problems are caused by faulty electronic signals or incorrect data from the module, then yes, replacing the PCM will resolve them. If the issue is a mechanical failure within the transmission itself, this part will not fix it.

Condition

Refurbished

Manufacturer Part Number

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Year
Genuine OEM

Yes

Year

2007, 2008, 2009

Model

SILVERADO 1500

Brand

GM

MPN

12639669

Interchange part number

Hardware Type

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