Restore Peak Performance to Your Chevrolet HHR
Is your 2007-2011 Chevrolet HHR suffering from perplexing issues like a persistent check engine light, rough idling, stalling, or a complete no-start condition? These are classic signs of a failing Powertrain Control Module (PCM), the central computer that governs your vehicle’s engine and transmission performance. A faulty PCM can disrupt everything from fuel delivery and ignition timing to emission controls and automatic transmission shifting, leading to frustration and potential damage to other components. This replacement PCM, part number 12612397, is the definitive solution to get your HHR back on the road and running like new.
From the Diagnostic Bay
We had a 2009 HHR come into the shop on a tow truck. The owner was frustrated because it would crank but never start, and two other shops had already replaced the fuel pump and crank sensor with no success. The check engine light was on, but their scanners couldn’t communicate with the PCM. That was our first clue. After verifying power and ground at the PCM connector, we connected our high-level diagnostic tool and confirmed the module was unresponsive. It had failed internally. We installed one of these pre-programmed modules, performed the quick security relearn procedure, and the car fired up on the first try. It’s a reminder that when communication is lost, the brain of the operation is often the culprit.
Why Choose Our Programmed 2007-2011 HHR PCM?
Unlike a generic module from a parts store or a salvage yard unit with unknown history, our PCM comes fully programmed to your vehicle’s specific Vehicle Identification Number (VIN). This is a critical step that ensures perfect compatibility and function. We flash the module with the latest, most stable software updates directly from GM. This process not only restores original functionality but also resolves many common drivability issues and software bugs that were identified after your vehicle left the factory. By providing your VIN at checkout, you eliminate the need for an expensive trip to the dealership for programming, saving you both time and money.
Common Symptoms of a Failing HHR ECM
- ✔ Persistent Check Engine Light (CEL) with codes like P0601, P0603, P0606 (Internal Controller Failure).
- ✔ Engine cranks but will not start.
- ✔ Rough or erratic idling and stalling.
- ✔ Noticeable decrease in fuel economy.
- ✔ Harsh or incorrect automatic transmission shifting.
- ✔ Communication errors with diagnostic scan tools.
- ✔ Unexplained engine misfires or hesitation during acceleration.
- ✔ Intermittent issues that are difficult to diagnose.
Direct Replacement, Guaranteed Compatibility
This module is a direct-fit replacement for a wide range of GM vehicles, ensuring a straightforward installation. It is compatible with multiple original service numbers, making it a versatile solution. This unit interchanges with the following part numbers:
- 12612397
- 12597125
- 12594750
- 12629019
- 12635902
- 12611549
- DL216140
By ordering our pre-programmed 2007-2011 HHR PCM, you are not just buying a part; you are getting a complete, ready-to-install solution designed to permanently resolve your vehicle’s electronic control issues. Take the guesswork out of your repair and restore the reliability and efficiency of your vehicle today.
Frequently Asked Questions
What does a PCM do in my Chevy HHR?
The Powertrain Control Module (PCM) is your HHR’s main computer. It controls the engine’s fuel injection, ignition timing, emissions systems, and also communicates with the transmission control module to ensure smooth shifting and optimal performance. It’s essential for the vehicle to run correctly.
Is this PCM plug-and-play?
Almost. Because we program it to your vehicle’s VIN, it is ready for installation right out of the box. However, you will need to perform a simple security relearn procedure (often called a CASE relearn or anti-theft relearn) after installation. This procedure can typically be done without special tools and instructions are readily available online or in service manuals. It syncs the new PCM with your vehicle’s anti-theft system.
Where is the PCM located on a 2007-2011 HHR?
On the Chevrolet HHR models from 2007 to 2011, the Electronic Control Module (ECM/PCM) is typically located in the engine compartment, on the driver’s side, at the rear of the engine bay near the firewall.
How do I provide my VIN for programming?
After you complete your purchase, you will need to send us your 17-digit Vehicle Identification Number (VIN). You can typically add this in the notes section during checkout or reply to your order confirmation email. We cannot ship your part until we receive the VIN, as the programming is specific to your vehicle.
Will this fix my specific check engine light code?
This module is a common fix for internal processor fault codes (like P0601, P0606) and communication errors. While it can resolve many other issues, it’s crucial to properly diagnose your vehicle. A faulty sensor or wiring problem can sometimes mimic PCM failure. If you are unsure, it’s best to consult with a qualified technician.