Is your 2003-2007 GMC SIERRA DENALI experiencing stalling issues during family road trips or daily commutes? This VIN-programmed 12589463 Electronic Control Module (ECM) is the solution you need to restore OEM performance seamlessly. With its pre-programmed design, you can say goodbye to dealership visits and hello to reliable driving.
- Restores original ECM 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 SIERRA DENALI variants (expand from data, e.g., engine sizes like 5.3L).
No more sluggish acceleration on highways or check engine lights. This ECM is designed to work in harmony with your vehicle’s systems, providing efficient performance and reliability. Unlike failing factory modules that trigger codes, this replacement ensures your SIERRA DENALI runs smoothly and efficiently.
Pairing this ECM with a diagnostic tool can help you identify any issues before installation, ensuring optimal results. Simply use a code reader to diagnose the problem and then swap out the old module for this new one.
Important Installation Notes
Please note that after installation, some features may require relearn procedures using GM systems like Tis2web/Techline Connect. It is the buyer’s responsibility to perform these relearns and setups, such as injector or crankshaft variation relearn, to ensure proper vehicle function.
Order your pre-programmed ECM today and rediscover reliable driving in your 2003-2007 GMC SIERRA DENALI!
This part will fit these makes and models with these options
2003 – 2007 GMC SIERRA DENALI Electronic Control Module (ECM) (part number: 12589463)