Programmed 2004 GM Truck & SUV PCM 12586242 | Trailblazer, Silverado, Sierra

Drive with Confidence Again

End the guesswork and frustration of a faulty computer. This replacement PCM for your 2004 GM truck or SUV is professionally programmed to your vehicle’s VIN, ensuring it works correctly right out of the box. Regain the reliability and smooth performance you depend on. Get back on the road with peace of mind—order yours today.

$119.95

+11.99 USPS Priority Shipping

Availability: In stock



Guaranteed Safe Checkout

Restore Your GM Truck’s Brain and Get Back on the Road

Is your 2004 GM truck or SUV running rough, stalling unexpectedly, or throwing a check engine light that just won’t go away? A failing Powertrain Control Module (PCM) is often the culprit behind these frustrating and unpredictable issues. This isn’t just a replacement part; it’s the central command center for your vehicle’s engine, and we provide a reliable, plug-and-play solution to restore its performance. We pre-program this module to your vehicle’s specific VIN, loading the latest GM software updates to ensure it functions perfectly right out of the box. Stop chasing intermittent problems and install a component you can trust to get your vehicle running smoothly again. Using the exact 2004 GM truck SUV PCM 12586242 is crucial for proper communication between all your vehicle’s systems.

Common Symptoms & Your Solution

If you’re experiencing any of the following, a faulty PCM is a likely cause:

  • Erratic engine performance, such as stalling, surging, or misfiring.
  • Failure to start or intermittent starting issues.
  • Poor fuel economy and reduced power.
  • Check Engine Light with communication-related DTCs (Diagnostic Trouble Codes).
  • Transmission shifting problems or harsh shifts.

This professionally programmed PCM is the definitive solution. By matching it precisely to your VIN, we eliminate the compatibility issues and software conflicts that can arise from using a generic, non-programmed module. It’s designed to restore the original performance and efficiency of your engine and transmission.

Features & Benefits

  • VIN-Programmed for You: Arrives ready for installation, flashed with the latest GM software updates specifically for your vehicle. No expensive trip to the dealer needed for programming.
  • Restores Peak Performance: Corrects common issues like rough idling, poor acceleration, and inefficient fuel consumption by restoring factory engine parameters.
  • Direct-Fit Replacement: Engineered to be a direct replacement for service numbers 12586242, 19299226, 89017738, and many others, ensuring a perfect fit and connection.
  • Built for Durability: This quality component is inspected to ensure it meets strict standards for reliability, giving you confidence on the road.
  • This unit is backed by our one-year replacement warranty.

Expert Insight: The Power of Proper Programming

As a technician with over two decades of experience, I’ve seen countless vehicle issues caused by improperly matched control modules. Many people buy a used computer from a junkyard, thinking it’s a cheap fix, only to find it won’t communicate with their vehicle’s security system or other modules. Our process of programming the 2004 GM truck SUV PCM 12586242 to your specific VIN isn’t just a convenience—it’s a critical step that ensures every system, from the anti-theft to the transmission controller, works together seamlessly as the manufacturer intended. This saves you from hours of diagnostic headaches and potential follow-up repairs.

Take control of your vehicle’s health and restore the dependable performance you rely on. This is the most effective way to solve complex electronic issues and ensure your truck or SUV serves you well for years to come. Installing a correctly programmed 2004 GM truck SUV PCM 12586242 is the smart repair for a lasting solution.

Frequently Asked Questions

Do I need to send you my old PCM?

No, there is no core charge or need to send us your original part. This is a direct purchase.

What information do you need from me?

After you complete your purchase, you must provide us with your vehicle’s 17-digit Vehicle Identification Number (VIN). We cannot ship your part until we have this information to program the module correctly.

Is any additional programming required after installation?

In most cases, you will need to perform a security relearn procedure after installation. This is a simple process that pairs the new PCM to your vehicle’s keys and can typically be done without special tools. Instructions are widely available online for your specific model, or you can consult a service manual.

How do I find my service number to confirm compatibility?

Your original PCM will have a sticker on it with the service number. This part is compatible with service numbers 12586242, 19299226, 89017738, YFKD, YFKF, YFKH, YFKJ, YFKX, YFXL, YFXM, YFXN, YFXP, and YHTN. However, as long as your vehicle is on the fitment list, we will program the module correctly using your VIN.

Will this fix my specific problem?

This PCM will correct issues directly caused by a failing computer. While it solves a wide range of common problems, we always recommend a proper diagnosis by a qualified mechanic to ensure the PCM is the root cause of your issue before ordering.

Condition

Refurbished

Year

Genuine OEM

Yes

MPN

YFKF

Interchange part number

Model

TRAILBLAZER EXT

Year

2004

Brand

GM

Manufacturer Part Number

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superseded part number

12586242 19299226 89017738 YFKD, YFKF YFKH YFKJ YFKX YFXL, YFXM YFXN YFXP YHTN

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