Get Your Dependable Envoy Back on the Road
Is your 2006 GMC Envoy suffering from frustrating issues like a persistent Check Engine Light, erratic shifting, poor fuel economy, or even a no-start condition? These are classic signs of a failing Powertrain Control Module (PCM), the electronic brain of your vehicle. Don’t let a faulty computer keep your reliable SUV sidelined. This professionally programmed PCM is the definitive, hassle-free solution to restore your vehicle’s performance and your peace of mind.
Common Symptoms & Your Direct Solution
A failing 2006 GMC Envoy PCM can create a cascade of problems that are often misdiagnosed, leading to wasted time and money on unnecessary parts. If you’re experiencing any of the following, a faulty engine computer is the likely culprit:
- Check Engine Light with codes like P0601, P0602, P0604, or P0606 (Internal Control Module Errors).
- Harsh or Delayed Shifting: The PCM controls transmission logic, and a failure can cause poor shift quality.
- Engine Stalling or Misfiring: Inconsistent signals from the PCM can disrupt fuel and spark delivery.
- No Communication: Your mechanic’s scan tool is unable to connect with the vehicle’s computer.
- Reduced Power or Poor Acceleration: The engine isn’t receiving the correct instructions to perform as it should.
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We take an original equipment (OEM) unit and flash it with the latest, most stable software updates from General Motors, programmed specifically to your vehicle’s unique VIN. This ensures all factory parameters for your engine, transmission, and options are perfectly matched, eliminating the need for an expensive trip to the dealership.
Features & Benefits
- โ Plug-and-Play Installation: Arrives programmed to your specific VIN. Simply install the module, and in most cases, you’re ready to go.
- โ Latest GM Software: We load the most current factory software for your vehicle, ensuring optimal engine performance, fuel efficiency, and transmission function.
- โ Solves Complex Electrical Issues: The correct fix for persistent DTCs, communication errors, and other frustrating electrical gremlins that other repairs can’t solve.
- โ Broad Compatibility: A direct replacement for a wide range of part numbers, including 12591647, 12597521, 12606369, and many others listed in the fitment guide.
- โ One-Year Warranty: This unit is backed by our one-year replacement warranty, giving you confidence and security in your repair.
Expert Insight from a 20-Year Technician
I’ve seen countless hours and dollars wasted chasing sensor and wiring problems when the root cause was the PCM all along. The GMT360 platform (Envoy, Trailblazer, etc.) is known for its durable powertrain, but the electronics can be a weak point over time. Our VIN programming service is the key difference-maker. We’re not just sending you a part; we’re delivering the exact, correct software configuration your Envoy left the factory with, plus all subsequent updates. This prevents compatibility issues and ensures a smooth, successful repair the first time.
Frequently Asked Questions
Do I need to program this computer after I receive it?
No. This PCM comes fully flashed and programmed to your vehicle’s 17-digit VIN. In most cases, it is a simple plug-and-play installation. Some vehicles may require a security relearn or CASE relearn procedure, which can often be completed with a simple key cycle process or by a qualified technician with a capable scan tool.
How do I provide my VIN?
After you complete your purchase, please send us a message with your vehicle’s VIN. We cannot program and ship your order until we receive this crucial information. You can typically find your VIN on your driver’s side dashboard (visible through the windshield) or on your vehicle’s registration and insurance documents.
Will this fix my transmission shifting problems?
The PCM is responsible for controlling both the engine and the automatic transmission. If your hard shifting, slipping, or delayed engagement is caused by a faulty computer, then this replacement 2006 GMC Envoy PCM is the correct solution to restore proper transmission function.
Is this a used part?
This is a high-quality, genuine OEM computer that has been professionally inspected, tested, and prepared. Each unit is cleared and then programmed with the latest vehicle-specific software from GM to ensure it functions to factory specifications.
What if my original part number is not 12606369?
This module is a direct replacement for the entire list of part numbers shown in the description. GM often uses many different part numbers for the same component. As long as your vehicle make, model, and year are listed, this unit will be a perfect, compatible fit.