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Home >> GMC >> 2021 >> Yukon AT4 >> Repair and Diagnosis >> General Information >> Reset Procedures >> Programming And Setup >> Repair Instructions >> K73 Telematic Control Module: Programming and Setup (without UDA) >> Replace and Program Control Module or Reprogram Control Module
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Replace and Program Control Module or Reprogram Control Module

To program a replacement or an existing control module, perform the following procedure:

    NOTE:

    Begin with the vehicle in the vehicle OFF power mode. The Service Programming System will power mode the vehicle.

  1. Ignition/Vehicle OFF
  2. Access the Service Programming System (SPS) and follow the on-screen instructions.
  3. In the SPS Supported Controllers screen, select K73 Telematics Communication Interface Control Module Programming and Service Activation and follow the on-screen instructions.
  4. Clear DTCs.
  5. Press the OnStar® Blue Button to call OnStar® to inform the advisor the module has been replaced and the system needs to be activated.
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