Is your 2006 GMC Envoy XL running rough, stalling unexpectedly, or showing a persistent Check Engine light that just won’t go away? A failing Powertrain Control Module (PCM) is often the culprit behind these frustrating and unpredictable issues. This isn’t just a replacement part; it’s a complete, pre-programmed solution designed to restore your vehicle’s factory performance and reliability, getting you back on the road with confidence.
Common Failure Symptoms & Your Direct-Fit Solution
If you’re experiencing any of the following, a faulty engine computer is the likely cause. This module is the definitive solution for symptoms such as:
- Erratic or harsh transmission shifting
- Poor fuel economy
- Engine stalling or difficulty starting
- No communication with your scan tool
- Diagnostic Trouble Codes (DTCs) like P0601, P0602, P0606, or other communication errors
We take the guesswork out of the repair. Simply provide us with your vehicle’s VIN during checkout, and we will flash this module with the latest, most stable GM-certified software specific to your Envoy XL. This ensures that your new 2006 Envoy XL PCM 12588650 is ready to install right out of the box, saving you a costly and time-consuming trip to the dealership.
Features & Benefits
- ✔ Plug & Play Installation: Arrives flashed to your specific VIN, ready for a straightforward installation.
- ✔ Restored Performance & Efficiency: Programmed with the latest GM software updates to optimize fuel mapping, transmission shift points, and overall engine operation.
- ✔ Guaranteed Compatibility: A direct replacement for part number 12588650 and a wide range of other OEM numbers, ensuring a perfect fit and function for your vehicle. See our full fitment list for details.
- ✔ Solves Complex Issues: The correct fix for a host of electrical and performance problems that can be difficult to diagnose. This 2006 Envoy XL PCM 12588650 is the brain of your vehicle, and a fresh start makes all the difference.
- ✔ Peace of Mind Included: This unit is backed by our one-year replacement warranty.
Expert Insight from Our Techs: Many owners don’t realize that a PCM from a salvage yard won’t work in these GM vehicles. The module is electronically tied to the original vehicle’s anti-theft system (VATS/Passlock) and specific options. Our VIN programming service isn’t just a convenience—it’s essential. We match the software to your exact build, ensuring all systems communicate correctly and the vehicle starts and runs as it should, without any anti-theft conflicts.
Frequently Asked Questions
Do I need to do anything after installation?
Yes. After installing the module, you will need to perform a simple security relearn procedure, also known as a VATS relearn. This process syncs the new PCM with your vehicle’s anti-theft system and keys. It typically takes about 30 minutes and can be done without any special tools. We include instructions to guide you through it.
Where is the PCM located on my 2006 Envoy XL?
On the 2006 GMC Envoy XL with the 4.2L engine, the PCM is located in the engine bay, on the driver’s side (LH side), mounted near the firewall or inner fender.
How do I provide my VIN?
You can add your 17-digit Vehicle Identification Number (VIN) to the notes section during checkout. If you forget, don’t worry—we will contact you via email after your purchase to request it. We cannot ship your 2006 Envoy XL PCM 12588650 until it is programmed.
Is this the correct part for my vehicle?
This unit fits the 2006 GMC Envoy XL and many other GM models listed in the fitment chart. The best way to confirm is to match your original module’s part number to one on our cross-reference list. If you’re unsure, feel free to contact us with your VIN, and we’ll verify compatibility for you.
What if my original part number isn’t on your list?
Our list of compatible part numbers is extensive but may not include every single variation. If you don’t see your number, please contact our support team with your vehicle’s VIN and original part number. We can often verify compatibility or find the correct module for your needs.