Restore Your GM Truck’s Core Performance
Is your 2004 Suburban, Silverado, Tahoe, or other GM truck plagued by frustrating and unpredictable issues? A failing Powertrain Control Module (PCM) can be the hidden cause of everything from poor fuel economy and erratic shifting to a no-start condition that leaves you stranded. Stop guessing and replace the brain of your vehicle’s operation with this professionally programmed PCM, designed to restore the dependable performance you rely on. This isn’t just a part; it’s a solution to get your trusted truck or SUV back on the road, running exactly as it should.
Common Symptoms & Your Solution
If you’re experiencing any of the following, a faulty engine computer is the likely culprit. This programmed 2004 Suburban 1500 PCM 12586242 is the definitive solution for:
- Persistent Check Engine Light (CEL)
- Engine stalling, stumbling, or rough idling
- Harsh or incorrect transmission shifting
- A sudden drop in fuel efficiency
- Communication errors with diagnostic scan tools
- Complete no-start or intermittent starting problems
Features & Benefits
- âś” Plug & Play Installation: We flash this module with the latest GM software using your vehicle’s VIN. This ensures a seamless installation without needing an expensive trip to the dealership.
- âś” Restore Peak Performance: Corrects common issues like rough idling, poor fuel economy, and erratic shifting, bringing your engine’s reliability back to factory standards.
- âś” Guaranteed Compatibility: A direct replacement for service number 12586242 and a wide range of others, including YFKD, YFKF, YFKH, YFKJ, and YFXL, ensuring a perfect fit for your 2004 GM truck or SUV.
- âś” Latest GM Updates: Programmed with the most current software from General Motors to optimize performance and address known factory issues, giving you an edge over an old, outdated unit.
- âś” One-Year Replacement Warranty: This unit is backed by our one-year replacement warranty, giving you confidence and peace of mind in your repair.
Expert Insight: The Critical Role of VIN Programming
For these 2004 GM vehicles, the PCM is more than just a computer; it’s the central hub that manages everything from the engine and transmission to the anti-theft system (Passlock/VATS). Simply swapping a used computer from another vehicle won’t work—it will trigger the security system and prevent the engine from starting. Our VIN-specific programming pre-loads all the correct information for your exact vehicle configuration. This critical step saves you from needing specialized dealer tools for procedures like the security relearn, making the installation process straightforward for any competent DIYer or local mechanic.
By providing us with your VIN at checkout, you ensure that the 2004 Suburban 1500 PCM 12586242 you receive is perfectly matched to your vehicle’s specific systems. This is the most reliable and efficient way to solve complex electronic issues and restore the robust functionality of your GM truck or SUV.
Frequently Asked Questions
Do I need to do anything after installing this PCM?
Because this unit is pre-programmed to your VIN, the installation is typically plug-and-play. However, on some GM vehicles, a security relearn procedure may be required. This is a simple process that can be done without any special tools and typically involves a sequence of turning the key in the ignition. We include instructions for this procedure if it applies to your vehicle.
Where do I find my vehicle’s VIN?
Your 17-digit Vehicle Identification Number (VIN) can be found on your vehicle’s registration, your insurance card, or on the driver’s side of the dashboard, visible through the windshield.
How do I know if my original PCM is failing?
Symptoms of a failing PCM include a persistent check engine light, unexplained performance issues like poor acceleration or stalling, communication failures with scan tools, and intermittent starting problems. A thorough diagnosis by a qualified technician is the best way to confirm the PCM is the root cause.
Is this compatible if my old part has a different service number?
Yes. This PCM, service number 12586242, also replaces several other service numbers like 19299226, 89017738, YFKD, YFKF, YFKH, and more as listed in the fitment guide. As long as your vehicle is on the compatibility list, we will program this module to function perfectly for your application.
What information do you need from me?
After you complete your purchase, we will need your 17-digit VIN to program the computer correctly. This ensures all the factory settings for your specific engine, transmission, and options are loaded properly.