Restore Your Envoy’s Performance and Reliability
Is your 2006 GMC Envoy XL running rough, stalling unexpectedly, or showing a persistent Check Engine Light? A failing Powertrain Control Module (PCM) is often the root cause, disrupting engine performance, transmission shifting, and fuel economy. This isn’t just an inconvenience; it’s a matter of reliability. We offer a straightforward, dependable solution: a professionally programmed PCM flashed with the latest GM software, specifically matched to your vehicle’s VIN. Get your SUV back to factory-spec operation without an expensive trip to the dealership.
Common Symptoms & Your Solution
If you’re experiencing any of the following issues, a faulty PCM is the likely culprit:
- Erratic or rough idling
- Poor acceleration and loss of power
- Decreased fuel efficiency
- Engine stalling or refusing to start
- Harsh or incorrect automatic transmission shifting
- Check Engine Light with codes like P0601, P0602, P0606, or other communication errors
This module is the definitive fix. By ordering our programmed 2006 Envoy XL PCM, you’re not just buying a part; you’re getting a fully integrated solution that communicates perfectly with your vehicle’s systems right out of the box.
Features & Benefits
- ✔ Plug & Drive Installation: We program the module to your vehicle’s unique VIN before shipping. This critical step ensures it works with your existing keys and anti-theft system, eliminating the need for costly dealer programming.
- ✔ Updated GM Software: Your PCM arrives flashed with the newest vehicle-specific software from General Motors, ensuring optimal performance, fuel efficiency, and emissions control.
- ✔ Solves Complex Issues: Engineered to correct the frustrating drivability problems caused by a failing original computer, from engine misfires to transmission communication faults.
- ✔ Guaranteed Compatibility: This unit is a direct replacement for a wide range of part numbers, including 12569773, 12588650, 12591647, 12604438, and more, for a perfect fit in your Envoy, Trailblazer, Rainier, Hummer H3, and other listed models.
- ✔ Peace of Mind Included: This unit is backed by our one-year replacement warranty.
From the Technician’s Bench: Why VIN-Specific Programming is Essential
Many people wonder if they can just grab a used computer from a junkyard. For modern vehicles like your Envoy, the answer is a firm ‘no’. The PCM is the brain, and it’s married to the body and security systems through the Vehicle Identification Number (VIN). Without proper programming, the vehicle’s anti-theft system (GM’s Passlock) will prevent the engine from starting. Furthermore, subtle differences in options—like gear ratios or tire size—are stored in the PCM. Our process of flashing your specific VIN ensures every system communicates correctly, giving you a seamless repair. Investing in a properly programmed 2006 Envoy XL PCM is the only way to guarantee a successful and lasting fix.
Frequently Asked Questions
Do I need to do any additional programming after installation?
No. This PCM is programmed to your VIN and is ready for installation. In some cases, a security relearn procedure, which takes about 30 minutes and requires only your key, may be necessary. We provide simple instructions for this. No special tools are needed.
How do I provide my vehicle’s VIN?
After you complete your purchase, simply reply to your order confirmation email with your 17-digit VIN. You can also send it to us through our website’s contact form with your order number. We cannot ship your part until we receive this information.
Is this the correct PCM for my vehicle?
This module fits the specific makes, models, and years listed in the compatibility chart. Please cross-reference your original part number with the list provided. If you are unsure, please contact us with your VIN before ordering, and we will be happy to verify the fitment for you.
What does ‘flashed with the newest updates’ actually mean?
Think of it like a software update for your computer or phone. Over time, manufacturers like GM release software improvements to fix bugs, enhance transmission shifting logic, and improve engine efficiency. We ensure your replacement module has these latest updates installed for peak performance.
What if my original part number isn’t on your list?
The part numbers listed cover the vast majority of compatible modules for the vehicles shown. However, if your number is not on the list, please contact us. It may be an older, superseded number that we can still match.