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Home >> Cadillac >> 2021 >> XT5 Sport >> Repair and Diagnosis >> External Pages >> Different car >> Section 748 (Programming And Setup - All Systems) >> Repair Instructions >> K4 Assist Step Control Module: Programming and Setup >> Reprogram Control Module
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Reprogram Control Module

WARNING: This page is about a different car, the 2023 GMC Sierra 3500 HD and 2023 GMC Sierra 2500 HD. However, it is still accessible from the selected car via links, so may be relevant.
NOTE:
  • DO NOT reprogram a control module unless directed to by a service procedure or a service bulletin.
  • Verify all modules are connected and communicating before attempting to program the K4 Step Assist Control Module.
  • Begin with the Vehicle Power Mode OFF. Programming will direct the appropriate control module(s) to change power mode as needed during the procedure, independent of the vehicle's power mode.

To reprogram an existing step assist control module, perform the following procedure:

  1. Vehicle Power Mode - Off.
  2. Access the Service Programming System (SPS) and follow the on-screen instructions.
  3. On the SPS Supported Controllers screen, select K4 Step Assist Control Module - Programming and follow the on-screen instructions.
  4. On the SPS Supported Controllers screen, select K4 Step Assist Control Module - Setup and follow the on-screen instructions.
  5. Check the driver information center display for additional messages regarding further calibration instructions. If there are no additional driver information center instructions present, programming is complete.
  6. Clear DTCs.
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