Restore Peak Performance to Your 2004 GM Truck or SUV
Is your 2004 Cadillac Escalade ESV, Sierra, or Silverado plagued by frustrating issues like a persistent check engine light, erratic shifting, a rough idle, or even a no-start condition? These are classic signs of a failing Powertrain Control Module (PCM), the central computer of your vehicle. Don’t let a faulty module compromise the power and reliability you depend on. This engine control module is the definitive solution to restore your vehicle’s factory performance and get you back on the road with confidence.
Common Symptoms & Your Solution
A failing PCM can cause a wide range of problems that can be difficult to diagnose. If you’re experiencing any of the following, this pre-programmed module is your answer:
- Unexplained Check Engine Light (CEL)
- Diagnostic Trouble Codes (DTCs) related to communication errors (U-codes) or sensor circuits
- Poor fuel economy
- Harsh or delayed transmission shifting
- Engine stumbling, misfiring, or stalling
- Failure to pass emissions testing
- Complete no-start condition
This isn’t just a replacement part; it’s a complete, ready-to-install solution. We flash this 2004 Escalade ESV PCM 12586242 with the latest, most stable software updates from GM, programmed specifically to your vehicle’s unique Vehicle Identification Number (VIN). This critical step ensures perfect communication between all of your vehicle’s systems, from the engine and transmission to the anti-lock brakes.
Features & Real-World Benefits
- ✔ Effortless Plug-and-Play Installation: Because we program the unit to your VIN before shipping, you can skip the expensive trip to the dealership for programming. Simply install the module and you’re ready to go.
- ✔ Updated with the Latest GM Software: Your vehicle will benefit from the most current software available, which often resolves factory bugs and improves overall drivability and efficiency.
- ✔ Guaranteed Compatibility: By matching your VIN and original service number (this unit replaces 12586242, 19299226, 89017738, and many more), we ensure this module is a perfect match for your vehicle’s specific configuration.
- ✔ Restore Smooth Operation: Say goodbye to rough idling, poor throttle response, and erratic behavior. This module restores the crisp, responsive performance you expect from your truck or SUV.
- ✔ Solid One-Year Coverage: This unit is backed by our one-year replacement warranty, giving you peace of mind with your purchase.
From the Technician’s Bench: We recently had a customer with a 2004 Sierra Denali that had been to three different shops. It had a persistent communication code and would randomly stall. The dealership quoted them over $1200 for a new module and the required programming. We sent them this exact VIN-programmed unit. They installed it in their driveway in under an hour, and the truck has been running perfectly ever since. This is the power of a correctly programmed, quality component—it saves you time, money, and immense frustration.
Take control of your repair and avoid unnecessary diagnostic fees and dealership markups. This 2004 Escalade ESV PCM 12586242 is the most reliable and cost-effective way to solve complex electronic issues and restore the heart of your vehicle. Simply provide us with your VIN upon purchase, and we’ll handle the complex programming for you. This module is the key to getting your vehicle back to running its best.
Frequently Asked Questions
Do I need to have this computer programmed?
No. The main benefit of our service is that we program the module to your vehicle’s specific VIN before we ship it to you. This makes the installation a simple, plug-and-play process without needing any special tools or a trip to the dealer.
What information do you need from me?
After you complete your purchase, you will need to provide us with your 17-digit Vehicle Identification Number (VIN). We cannot ship your part until we receive it, as the programming is essential for the part to function in your vehicle.
Will this fix my check engine light?
If the check engine light is caused by a faulty PCM, then yes, this part will resolve the issue. However, a check engine light can be triggered by many other components. We always recommend having the codes professionally scanned to confirm the PCM is the root cause of the problem before ordering a 2004 Escalade ESV PCM 12586242.
Where is this part located on my vehicle?
On most of the compatible full-size trucks and SUVs like the Escalade, Silverado, and Tahoe, the PCM is located in the engine bay on the driver’s side, under the battery or near the fender. On models like the Trailblazer and Envoy, it’s typically located next to the air filter box.
Is any additional setup required after installation?
In some cases, a security relearn procedure may be necessary, which can typically be done without special tools and takes about 30 minutes. Instructions for this simple procedure are widely available online for your specific model.
What does the warranty cover?
This unit is backed by our one-year replacement warranty. This covers the part itself in the unlikely event of a defect or failure within one year of the purchase date.