Replace and Program Control Module

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2015 GMC Yukon XL, 2015 GMC Yukon, 2015 Chevrolet Tahoe, 2015 Chevrolet Suburban, and 2015 Cadillac Escalade ESV. However, it is still accessible from the selected car via links, so may be relevant.

To program a replacement K20 Engine Control Module (ECM), perform the following procedure:

Install EL-49642 SPS programming support tool.
Access the Service Programming System (SPS) and follow the on-screen instructions.
Before removing the old control module, perform the SPS function Prepare Control Module for Removal, if available.
NOTE:
The Prepare Control Module for Removal function can only be performed when communication with the old control module is still possible.
Replace the ECM.
Perform the SPS function K20 Engine Control Module - Programming and follow the on-screen instructions.
Clear the DTCs after completing the Programming procedure.
If equipped, Perform the SPS function Immobilizer Learn and follow the on-screen instructions. Refer to IMMOBILIZER SYSTEM COMPONENT PROGRAMMING (WITHOUT BTM) , IMMOBILIZER SYSTEM COMPONENT PROGRAMMING (WITH BTM)
Perform the SPS function K20 Engine Control Module - Configuration & Setup and follow the on-screen instructions.
Clear DTCs after completing the Configuration & Setup procedure.