Restore Your Vehicle’s Performance and Reliability
Is your Chevrolet HHR, Cobalt, or Malibu suddenly running rough, stalling unexpectedly, or showing a persistent Check Engine Light? These frustrating issues often point to a failing Powertrain Control Module (PCM), the electronic brain of your vehicle. Don’t let a faulty computer keep you off the road. This genuine GM PCM, service number 12597125, is the definitive solution to get your vehicle operating at peak efficiency again. We take the guesswork out of the repair by programming the module specifically to your vehicle’s VIN, loading it with the latest GM software updates before it even leaves our facility. This ensures a seamless installation and restores the smooth, predictable performance you depend on.
Warning Signs and How to Overcome Them
A failing PCM can manifest in numerous ways, often mimicking other component failures. If you’re experiencing any of the following, this module is your solution:
- ✔ Unexplained Check Engine Light with codes like P0601, P0602, P0606, or other communication errors.
- ✔ Rough idling, engine stalling, or hesitation during acceleration.
- ✔ Noticeable decrease in fuel economy.
- ✔ Transmission shifting issues or harsh engagement.
- ✔ Complete no-start condition where the engine cranks but won’t fire.
- ✔ Intermittent electrical problems that seem to have no other source.
Guided Installation for a Confident Fix
We’ve made this repair as straightforward as possible. Because we pre-program the module to your VIN, the most complex step is already done. Follow these general steps for a successful installation:
- Safety First: Always disconnect the negative terminal of your vehicle’s battery before starting any electrical work.
- Locate the Old PCM: On most compatible vehicles like the HHR, the PCM is found in the engine compartment, often near the air filter box or on the firewall.
- Disconnect and Remove: Carefully unplug the electrical connectors. They have locking tabs that need to be released. Once disconnected, unbolt the old module from its mounting bracket.
- Install the New Module: Mount your new, pre-programmed 2007-2011 HHR PCM in the same location. Reconnect the electrical harnesses, ensuring they click securely into place.
- Reconnect the Battery: Re-attach the negative battery terminal.
- Perform Security Relearn: Your vehicle will likely require a simple security or anti-theft relearn procedure. This typically involves turning the key to the ‘ON’ position for 10-15 minutes, then off, and repeating two more times. This allows the new PCM to synchronize with your vehicle’s anti-theft system. Consult your owner’s manual for the specific procedure for your model.
Tailored Fit for Your Ride
This PCM is a direct replacement for service number 12597125 and is compatible with a wide array of GM vehicles. We guarantee a perfect fit and function for the following models and engine configurations. Please provide your VIN upon purchase to ensure precise programming for your specific application.
- Chevrolet Cobalt: 2007-2010 (2.2L, 2.4L)
- Chevrolet HHR: 2007-2011 (2.2L, 2.4L)
- Chevrolet Impala: 2010-2011
- Chevrolet Malibu: 2007-2012 (2.2L, 2.4L, 3.5L)
- Chevrolet Silverado 1500: 2007-2009 (4.3L)
- Chevrolet Express 1500 Van: 2008-2009 (4.3L)
- Buick Lucerne: 2009-2011 (3.9L)
- GMC Sierra 1500: 2007-2009 (4.3L)
- GMC Savana 1500 Van: 2008-2009 (4.3L)
- Pontiac G5/G6: 2007-2010 (2.2L, 2.4L)
- Pontiac Solstice: 2008-2010 (2.4L)
- Saturn Aura: 2008-2009 (2.4L)
- Saturn Sky: 2008-2010 (2.4L)
- Saturn Vue: 2008-2010 (2.4L)
This module replaces service numbers: 12612397, 12594750, 12597125, 12629019, 12635902, and 12611549. By ordering this pre-programmed 2007-2011 HHR PCM, you’re not just buying a part; you’re investing in peace of mind and the confidence that comes with a reliable, well-running vehicle.
Frequently Asked Questions
Do I need to do anything after installing this PCM?
Yes. While we handle the main programming, you will need to perform a simple security relearn procedure. This allows the new PCM to communicate with your vehicle’s anti-theft system and keys. It’s a straightforward process that typically takes about 30 minutes and does not require special tools.
How do I provide my VIN for programming?
After you complete your purchase, you will receive instructions on how to send us your vehicle’s 17-digit VIN. We cannot ship your order until we receive this information, as the programming is specific to your exact vehicle.
Is this a brand new part?
This is a high-quality, genuine GM service part that has been prepared and programmed with the latest software for your vehicle. It meets or exceeds all original equipment specifications for performance and longevity.
Will this fix my specific problem?
This module is the definitive solution for issues directly caused by a faulty PCM, such as internal processor faults (P0606) or memory errors (P0601). While it resolves a wide range of symptoms, it’s always best to have a proper diagnosis to rule out other potential issues like bad sensors or wiring problems.
What if my original part number isn’t listed?
The part numbers listed (12612397, 12594750, etc.) are the most common service numbers this module replaces. If your number is different, please contact us with your VIN. We can verify compatibility to ensure you receive the correct component for your car or truck.