Restore Peak Performance to Your GM SUV
Is your GMC Envoy, Trailblazer, or Rainier suffering from frustrating and unpredictable issues like stalling, a persistent check engine light, or a complete failure to start? These are common signs of a failing Powertrain Control Module (PCM). This vital component is the brain of your vehicle’s engine, and when it falters, it can cause a cascade of problems. This replacement PCM is the definitive solution to get your dependable SUV back on the road, running smoothly and reliably. We make the process simple by pre-programming the module specifically for your vehicle using your VIN, ensuring a straightforward installation and restoring your peace of mind.
Common Symptoms & Your Solution
A faulty engine computer can manifest in numerous ways. If you’re experiencing any of the following, this pre-programmed module is your solution:
- Erratic or harsh transmission shifting
- Sudden stalling or rough idling
- Complete no-start condition
- Poor fuel economy
- Check Engine Light with codes like P0601, P0602, P0606, or other communication errors
- Inaccurate or non-functioning dashboard gauges
This isn’t just a replacement part; it’s a direct fix for the complex electronic issues plaguing your vehicle. By ordering our 2004 2005 Envoy XUV PCM, you’re not just clearing codes—you’re addressing the root cause of the problem with a reliable, properly configured component.
Features & Benefits
- ✔ Programmed to Your VIN: This module arrives ready for installation. We flash it with the latest GM software updates using your vehicle’s specific VIN, eliminating the need for an expensive trip to the dealership for programming.
- ✔ Direct-Fit Replacement: Engineered to be a perfect match for the original unit, ensuring all connectors and mounting points align for a hassle-free installation.
- ✔ Restored Drivability: Solves common issues caused by a failing computer, including poor engine performance, erratic shifting, and mysterious electrical problems.
- ✔ Wide Compatibility: Guaranteed to be a compatible replacement for a range of part numbers, including 12573576, 12574976, 12577955, 12584593, and more.
- ✔ Peace of Mind: This unit is backed by our one-year replacement warranty.
An Expert’s Note on GM Security Systems
From my 20 years of experience, one of the biggest headaches with these GM SUVs is the Passlock/Passkey vehicle anti-theft system. Simply swapping a computer from another vehicle will almost always result in a no-start condition because the security credentials don’t match. That’s why our VIN programming service is so critical. We ensure the module is correctly prepared for your vehicle, so after a simple security relearn procedure (which you can do yourself in about 30 minutes), your vehicle will start and run as it should. This step saves you hundreds of dollars and the immense frustration of a dealership visit.
Don’t let a faulty computer keep your reliable SUV off the road. This professionally programmed 2004 2005 Envoy XUV PCM is the most effective and straightforward way to restore your vehicle’s performance and your confidence behind the wheel. After your purchase, simply provide us with your VIN, and we’ll handle the complex programming before shipping the part directly to you.
Frequently Asked Questions
Is this computer ready to install when it arrives?
Yes. This PCM is fully programmed to your vehicle’s VIN number with the latest GM software updates. In most cases, you will only need to perform a simple security relearn procedure after installation, which can be done without any special tools.
How do I provide my VIN number?
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 specific problem?
This PCM is a direct solution for issues caused by a failing engine computer, such as internal processor faults (e.g., code P0606) or communication errors. While it fixes a wide range of problems, we always recommend proper vehicle diagnostics to confirm the PCM is the point of failure before ordering.
Do I need to send my old computer back?
No core charge or return is required for this part. You can keep your old module.
What is the security relearn procedure?
This is a simple procedure required on GM vehicles to sync the new PCM with your vehicle’s anti-theft system. It typically involves turning the key to the ‘ON’ position for 10-15 minutes, then off, and repeating this cycle three times. We can provide detailed instructions upon request.
Is this the correct part for my Trailblazer or Rainier?
Yes, this 2004 2005 Envoy XUV PCM is also the correct computer for a wide range of other GM SUVs built on the same platform, including the Trailblazer, Rainier, Bravada, Isuzu Ascender, and Saab 9-7X that use the 4.2L 6-cylinder engine. Please verify your part number against the list provided.