Is your 2006 GMC Envoy feeling sluggish, shifting erratically, or displaying a persistent check engine light? A failing Powertrain Control Module (PCM) can disrupt every aspect of your vehicle’s performance, leaving you frustrated and uncertain. It’s time to stop guessing and install the definitive solution. This expertly prepared PCM is the central command for your engine and transmission, and our unit arrives fully programmed to your vehicle’s specific VIN, ensuring a seamless, plug-and-play restoration of your truck’s performance and reliability.
Common Symptoms & Your Direct-Fit Solution
If you’re experiencing any of the following issues, a faulty PCM is the most likely culprit. This unit is designed to permanently resolve problems such as:
- Erratic or harsh transmission shifting
- Poor fuel economy and engine performance
- Engine stalling, stumbling, or hard starting
- Persistent Check Engine Light (CEL)
- Diagnostic Trouble Codes (DTCs) like P0601, P0606, or other internal processor faults
- Failure to communicate with diagnostic scan tools
- Failed emissions tests
Replacing the module is only half the battle. Our process makes the repair simple: we flash the unit with the latest GM-certified software updates specifically for your vehicle’s VIN. This means you get a component that’s not just a replacement, but a fully updated brain for your Envoy. This is the most reliable way to get your truck back to factory-spec performance without an expensive trip to the dealership. This **2006 GMC Envoy programmed PCM** is your complete, ready-to-install fix.
Features & Benefits
- ✔ Plug & Play Installation: Arrives fully programmed to your VIN. No dealership visit required for flashing.
- ✔ Restored Performance: Corrects rough idle, poor fuel mileage, and hesitation by restoring precise fuel and timing control.
- ✔ Solve Shifting Issues: Eliminates harsh shifts and communication errors between the engine and transmission.
- ✔ Latest GM Updates: Programmed with the newest software to improve performance and efficiency over the original factory calibration.
- ✔ Guaranteed Compatibility: A direct replacement for a wide range of part numbers including 12569773, 12597521, 12606374, and more.
- ✔ Peace of Mind: This unit is backed by our one-year replacement warranty.
Expert Insight: The Ghost Misfire
We recently worked with a customer whose 2006 Envoy 4.2L had a persistent random misfire (P0300) that mechanics couldn’t solve. They had replaced spark plugs, all six ignition coils, and even the fuel injectors. The issue persisted. The problem wasn’t a mechanical part; it was a failing ignition coil driver inside the original PCM. The module was intermittently failing to send a strong signal to the coils. Installing our **2006 GMC Envoy programmed PCM** not only cleared the code for good but restored the smooth, responsive power the owner thought was gone forever. It’s a perfect example of why the PCM should always be considered when multiple systems seem to be failing at once.
Don’t let a faulty computer keep your reliable GMC Envoy off the road. By providing us with your VIN during checkout, you ensure that the **2006 GMC Envoy programmed PCM** you receive is perfectly matched to your vehicle’s options and systems. This critical step guarantees a hassle-free installation and gets you back to driving with confidence.
Frequently Asked Questions
Do I need to do any programming myself?
No. This PCM comes fully programmed to your vehicle’s VIN. In most cases, you will only need to perform a simple security relearn procedure which involves turning the key in the ignition and can be done in your driveway in about 15-30 minutes. We provide instructions for this easy process.
How do I provide you with my VIN?
After you complete your purchase, you will receive instructions on how to send us your vehicle’s 17-digit VIN. We cannot ship your part until we receive this information, as it is essential for the programming process.
Will this fix my check engine light?
This module will correct any check engine light and diagnostic codes that are caused by a failing PCM. If your vehicle has other underlying mechanical or electrical issues, those will need to be addressed separately.
Is this compatible with other part numbers?
Yes. This PCM is a direct replacement for a wide range of part numbers, including 12569773, 12588650, 12591647, 12597521, 12600818, 12606374, and many others listed in the vehicle fitment section.
Will this work for other vehicles besides the Envoy?
Absolutely. This computer is compatible with many 2004-2006 GM models like the Chevy Trailblazer, Colorado, Hummer H3, and Isuzu Ascender with the corresponding engine. Please verify the fitment list to ensure it matches your specific vehicle.
What kind of warranty is included?
This unit is backed by our one-year replacement warranty, giving you confidence in your repair.