Is your 2003-2006 GMC Tahoe’s engine performance suffering due to a faulty Powertrain Control Module (PCM)? Say goodbye to stalling, poor fuel efficiency, and annoying check engine lights with our pre-programmed 12589463 PCM. This OEM-quality replacement part is designed to seamlessly restore your vehicle’s original function, ensuring smooth operation and reliable performance.
- Restores original PCM function for smooth operation.
- OEM-equivalent build ensures long-lasting reliability.
- Pre-programmed to your VIN—no dealership visits needed.
- Includes 1-year warranty for peace of mind.
- Easy DIY install with basic tools (tips: disconnect battery first to avoid shorts).
- Outperforms worn OEM without modifications.
- Compatible with Tahoe variants (expand from data, e.g., engine sizes like 5.3L).
Additional Notes:
No more sluggish acceleration on highways or struggling to tow your trailer up steep inclines. This pre-programmed PCM is designed to work in harmony with your vehicle’s engine, transmission, and other critical systems, ensuring optimal performance and fuel efficiency.
Unlike failing factory modules that can trigger annoying codes and compromise your vehicle’s reliability, our replacement PCM is built to last and provide years of trouble-free service. Plus, with its OEM-equivalent design, you can trust that it will integrate seamlessly with your vehicle’s existing systems.
When installing your new PCM, be sure to pair it with a diagnostic tool for optimal results. This will help ensure that any issues are properly diagnosed and cleared, allowing your vehicle to run at its best. Learn more about pairing with diagnostics below.
Important Installation Notes
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After installation, your vehicle may require a relearn procedure to ensure proper function. This is typically done using a scan tool or by following the manufacturer’s recommended procedures. Be sure to consult your owner’s manual or contact a professional mechanic if you are unsure about any aspect of the installation process.
This part will fit these makes and models with these options
2003-2006 GMC Tahoe PCM (add specifics from data, e.g., engine/transmission options, part number cross-references like 12692068).
Order your pre-programmed 12589463 PCM today and rediscover reliable driving in your 2003-2006 GMC Tahoe!