Is your 2017 XTS experiencing stalling or sluggish acceleration? This VIN-programmed 12678815 Engine Control Module (ECM) is the solution to restore OEM performance seamlessly. With this pre-programmed ECM, you’ll enjoy smooth operation and long-lasting reliability, just like when your vehicle was new.
- Restores original ECM function for optimal engine performance.
- OEM-equivalent build ensures long-lasting reliability and durability.
- Pre-programmed to your VIN – no dealership visits needed for programming.
- Included 1-year warranty provides peace of mind against defects or malfunctions.
- Easy DIY installation with basic tools (remember to disconnect the battery first to avoid shorts).
- Outperforms worn OEM modules without modifications, ensuring efficient engine operation.
- Compatible with various XTS variants, including 3.6L engines with VIN 8 (8th digit, opt LF3).
No more frustrating stalling or sluggish acceleration on highways! This ECM replacement ensures your vehicle runs like new again. Unlike failing factory modules that trigger codes and decrease efficiency, this pre-programmed ECM restores OEM performance and reliability.
For optimal results, pair this ECM with a diagnostic tool to monitor engine performance and identify potential issues before they arise. Learn more about pairing with diagnostics below.
Important Installation Notes
Upon installation, if the vehicle does not start, a theft relearn will be required using the GM programming system Tis2web/Techline Connect. Please note that this is the responsibility of the end-user. Additionally, other relearns or setup procedures (e.g., injector setup, crankshaft variation relearn) may be necessary, which are also the buyer’s responsibility.
Our ECMs are programmed with the latest updates from GM using your VIN to match your vehicle’s specifications. To ensure a seamless installation process, please provide us with your VIN after purchasing this ECM.
This part will fit these makes and models with these options
2017 XTS (3.6L), VIN 8 (8th digit, opt LF3); also compatible with other GM models listed below:
ESCALADE 17 Electronic Control Module; (engine compartment)
ESCALADE ESV 17 Electronic Control Module; (engine compartment)
… (list other compatible models from base description)
Order your pre-programmed ECM today and rediscover reliable driving in your 2017 XTS!