Get Your Envoy Running Like New Again
Is your 2006 GMC Envoy suffering from frustrating and unpredictable issues like stalling, erratic shifting, or a persistent check engine light? A failing Powertrain Control Module (PCM), the brain of your vehicle’s engine, is often the culprit. This isn’t just an inconvenience; it’s a matter of reliability. We offer a direct, dependable solution: a professionally programmed PCM engineered to restore your truck’s performance and your peace of mind. This 2006 GMC Envoy 4.2L Programmed PCM arrives at your door flashed with the latest GM software updates and coded specifically to your vehicle’s VIN, ensuring a seamless installation process.
Common Symptoms of a Failing Envoy PCM & Your Solution
If you’re experiencing any of the following, a faulty engine computer is a likely cause. This module is the definitive solution for these problems:
- Sudden engine stalling or cutting out while driving
- Failure to start, even with a good battery and starter
- Poor fuel economy and reduced engine power
- Harsh or incorrect automatic transmission shifting
- Check Engine Light with communication error codes (like U0100) or internal module failure codes (P0601, P0602, P0605, P0606)
- Inaccurate or non-functioning dashboard gauges
Features & Benefits
- ✔ Plug-and-Play Installation: This unit is delivered programmed to your vehicle’s specific VIN. No expensive dealership trips for programming are required.
- ✔ Latest GM Software: We flash your module with the newest vehicle-specific updates from General Motors, which can solve factory bugs and improve drivability.
- ✔ Guaranteed Compatibility: This is a direct-fit replacement for a wide range of original part numbers, including 12597777, 12597521, 12606373, and more, ensuring it works perfectly with your vehicle.
- ✔ Restored Performance: A properly functioning PCM is critical for optimal engine timing, fuel delivery, and transmission control, bringing back the smooth and reliable operation you expect from your Envoy.
- ✔ One-Year Warranty: This unit is backed by our one-year replacement warranty, giving you complete confidence in your purchase.
An Expert’s Note on VIN Programming
In vehicles like your 2006 Envoy, the PCM is much more than a simple computer. It’s integrated with the anti-theft system (GM’s Passlock), transmission controls, and various body options. Simply swapping a used computer from another truck will result in a no-start condition. That’s why our VIN programming service is so essential. We don’t just sell you a part; we provide a complete solution that allows your vehicle to accept the new module, saving you hundreds of dollars and significant hassle compared to a dealership repair.
Stop guessing and start solving. By replacing your old module with this fully tested and correctly configured 2006 GMC Envoy 4.2L Programmed PCM, you’re not just fixing a problem—you’re investing in the long-term health and reliability of your vehicle.
Frequently Asked Questions
Do I need to do any additional programming?
No. We program the module to your vehicle’s VIN before shipping. In most cases, it is a direct plug-and-play installation. You may need to perform a simple security relearn procedure, which involves turning the key on and off and takes about 30 minutes. We provide instructions for this easy process.
How do I provide my vehicle’s VIN?
After you complete your purchase, we will send you an email requesting your VIN (Vehicle Identification Number). You can also add your VIN in the notes section during checkout. We cannot ship your part until we receive this information.
Is this compatible with my original part number?
Yes, this module is a direct replacement for a wide range of original GM part numbers, including 12569773, 12588650, 12591647, 12597777, 12600818, 19209820, and many others listed in the fitment guide. As long as your vehicle is listed, this module will work.
What tools are needed for installation?
Installation is straightforward and typically requires only basic hand tools, such as a socket set and a screwdriver, to access and replace the module. The most important first step is to disconnect the vehicle’s battery.
Will this fix my check engine light?
If the check engine light is caused by a faulty PCM (with codes like P0601 or U0100), this part is the correct solution. However, a check engine light can be triggered by many different sensors or components. It is always best to have your vehicle properly diagnosed to confirm the PCM is the point of failure.
Where is the PCM located on my 2006 Envoy?
On the 2006 GMC Envoy with the 4.2L engine, the Powertrain Control Module (PCM) is typically located in the engine bay, on the driver’s side, near the firewall or inner fender.