Is Your Envoy Running Rough? Get It Back in Top Shape.
There’s nothing more frustrating than a vehicle you can’t rely on. If your 2006 GMC Envoy XL is suffering from a persistent check engine light, erratic shifting, stalling, or a no-start condition, a failing Powertrain Control Module (PCM) is the most likely culprit. This isn’t just an inconvenience; it affects your vehicle’s performance, fuel economy, and safety. This module is the central command for your engine and transmission, and when it fails, it can be a headache. But you’ve found the straightforward, reliable solution.
Common Symptoms of a Failing PCM & Your Solution
A faulty PCM can manifest in numerous ways, leaving you stranded or dealing with poor drivability. If you’re experiencing any of the following, this part is the definitive fix:
- Persistent Check Engine Light (CEL) with codes like P0601, P0602, P0606, or other internal processor faults.
- Engine Stalling or Misfiring for no apparent reason.
- Harsh or Erratic Transmission Shifting as the PCM struggles to communicate properly.
- Complete No-Start Condition where the engine cranks but won’t turn over.
- Poor Fuel Economy and a noticeable loss of power.
Instead of paying for expensive diagnostics and dealership programming fees, our programmed 2006 GMC Envoy XL PCM arrives at your door ready for installation. We take your vehicle’s unique VIN and flash this computer with the latest, most stable software updates from General Motors, ensuring it’s a perfect match for your specific configuration.
Features & Benefits
- โ VIN-Programmed for Your SUV: This isn’t a generic, one-size-fits-all part. We flash it using your VIN, so it works seamlessly with your engine, transmission, and factory options right out of the box.
- โ Plug & Play Installation: By pre-programming the module, we eliminate the need for a costly trip to the dealership. Simply install the unit and perform the straightforward security relearn procedure.
- โ Restores Peak Performance: A correctly functioning PCM is critical for engine timing, fuel delivery, and transmission control. Restore the smooth, reliable performance you expect from your vehicle.
- โ Solves Annoying Electrical Gremlins: Put an end to confusing diagnostic codes and unpredictable behavior caused by a failing computer.
- โ OEM Quality & Reliability: Built to meet or exceed original equipment specifications for a long-lasting, dependable repair.
- โ Warranty Coverage: This unit is backed by our one-year replacement warranty.
An Expert’s Note on VIN Programming
As a technician, I’ve seen countless people buy a used computer from a salvage yard, only to find it won’t work. That’s because a PCM isn’t interchangeable like an alternator. It’s programmed with specific calibrations for that original vehicle’s engine, emissions system, and even tire size. By flashing this programmed 2006 GMC Envoy XL PCM with your VIN, we are essentially loading its digital DNA. This ensures every component communicates correctly, giving you a reliable repair that lasts.
Frequently Asked Questions
Do I need to do anything after I install this PCM?
Yes. After installation, you will need to perform a security relearn procedure, often called the VATS relearn. This simple process syncs the new PCM with your vehicle’s anti-theft system and keys. It typically involves turning the key to the ‘ON’ position for 10-15 minutes, then off, and repeating two more times. Instructions are easily found online for your specific model.
How do I provide my Vehicle Identification Number (VIN)?
After you complete your purchase, simply reply to your order confirmation email with your vehicle’s 17-digit VIN. You can find this on your driver’s side door jamb sticker, your insurance card, or at the base of the windshield on the driver’s side.
Will this fix my transmission shifting issues?
In many cases, yes. The PCM controls both engine and transmission functions. If your shifting problems are caused by faulty computer signals, incorrect sensor readings, or internal module failure, this replacement part is designed to resolve those issues and restore smooth shifting.
Is this a brand new part?
This is a genuine, high-quality OEM replacement part that has been thoroughly inspected, tested, and prepared with the latest GM software to ensure it provides excellent performance and reliability for your vehicle.
What if my original part number isn’t 12591647?
No problem. This module is a direct replacement for a wide range of original part numbers listed in the description. As long as your vehicle’s year, make, and model are on our compatibility list, we guarantee a correctly programmed module when you provide your VIN.