Restore Your Vehicle’s Power and Reliability
Is your 2004 GM truck or SUV suffering from frustrating and unpredictable issues? A faulty Powertrain Control Module (PCM) can cause everything from a persistent check engine light and poor fuel economy to rough idling, stalling, or even a no-start condition. Don’t let a failing engine computer keep your vehicle off the road. This replacement PCM, service number 12586242, is the definitive solution to restore your vehicle’s performance and your driving confidence.
We take the guesswork and complexity out of the repair. Before this unit ships, we flash it with the latest official GM software updates, precisely programmed to your vehicleโs unique Vehicle Identification Number (VIN). This ensures seamless communication with your vehicle’s existing systems and a straightforward installation process. This is the most reliable way to get your truck or SUV running exactly as the manufacturer intended.
Common Symptoms & Your Direct-Fit Solution
If you’re experiencing any of the following, a failing module is the likely culprit. This Programmed 12586242 PCM is designed to correct these exact problems:
- Unexpected stalling or cutting out while driving
- Illuminated Check Engine Light with communication error codes (U-codes) or P0601
- Noticeable decrease in fuel efficiency
- Harsh or erratic automatic transmission shifting
- Engine misfires or rough running conditions
- Complete failure to start the engine
Features & Benefits
- โ VIN-Programmed for Your Vehicle: Arrives ready to install, pre-flashed with the latest GM calibrations for your specific truck or SUV. No extra programming required.
- โ Restores Original Performance: Corrects engine and transmission issues, helping to restore lost horsepower, smooth shifting, and optimal fuel economy.
- โ Broad GM Compatibility: A direct replacement for a wide range of popular 2004 GM models, including the Escalade, Sierra, Silverado, Tahoe, Suburban, and more.
- โ Solves Annoying Electrical Gremlins: Puts an end to the frustrating diagnostic chases caused by a faulty computer, saving you time and money.
- โ One-Year Replacement Protection: This unit is backed by our one-year replacement warranty, giving you confidence in your repair.
Expert Insight: The Critical Role of VIN Programming
As a technician, I’ve seen countless issues arise from using a generic, non-programmed module. On these 2004 GM vehicles, the PCM is the central hub, managing not just the engine and transmission, but also communicating with the anti-theft system (Passlock/VATS), instrument cluster, and other modules. Our VIN-specific programming ensures all these components work together harmoniously, just like the original. It prevents security lockouts and guarantees all your vehicle’s factory options function correctly from the moment you turn the key.
Getting your vehicle back to peak condition is simple. After your purchase, just provide us with your VIN, and we’ll handle the complex programming. You’ll receive a fully updated, ready-to-install Programmed 12586242 PCM that will serve as the reliable heart of your vehicle’s electronics for years to come.
Frequently Asked Questions
Do I need to do any programming myself?
No. This PCM arrives at your door fully programmed to your vehicle’s VIN with the latest GM software updates. It is ready for installation right out of the box.
How do I provide my vehicle’s VIN?
After you complete your purchase, you will need to send us your 17-digit VIN. We will provide clear instructions on how to submit this information to ensure a quick and accurate programming process.
What if my original part number isn’t 12586242?
This module is a direct replacement for several service numbers, including 19299226, 89017738, YFKD, YFKF, and many others listed in the fitment data. As long as your vehicle and original service number are on our compatibility list, this unit will work perfectly.
Is a security relearn procedure required after installation?
Yes, on most 2004 GM vehicles, a simple security relearn procedure is necessary to sync the new PCM with your vehicle’s anti-theft system. This typically involves a series of key cycles and does not require any special tools. We can provide instructions for this easy process.
Where is the PCM located on my vehicle?
On this generation of GM trucks and SUVs, the PCM is typically found in one of two places: either in the engine bay on the driver’s side, mounted under the battery tray, or next to the air filter box.