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HOMESERVICE MANUALSCHEVROLET2025TAHOE COMMERCIAL, 4WDREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTMEMORY MODULESPROGRAMMING AND SETUP - ALL SYSTEMSREPAIR INSTRUCTIONSK73 TELEMATIC CONTROL MODULE: PROGRAMMING AND SETUP (UE1 W/O CZ2)REPLACE AND PROGRAM CONTROL MODULE
2025 Chevrolet Tahoe Commercial, 4WD

Replace and Program Control Module

2025 Chevrolet Tahoe Commercial, 4WDSECTION Replace and Program Control Module

To program a replacement 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. Check and follow Preliminary Information or Technical Service Bulletins before programming. If control module software updates are available, in the SPS Supported Controllers screen, select K73 - Software Update and follow the on-screen instructions.
    NOTE:

    Refer to and follow the Preliminary Information or Service Bulletin to successfully program this control module.

  4. To properly calibrate, activate and configure the control module, in the SPS Supported Controllers screen, select K73 Telematic Control Module - Programming and Service Activation and follow the on-screen instructions.
  5. Clear DTCs.
  6. Ignition/Vehicle ON.
  7. Press the OnStar® Blue Button to call OnStar®, inform the advisor a new module has been installed and to verify the module is fully configured, registered, and activated.
    8. NOTE:

    An OnStar® button press to the OnStar® call center is required to complete the module replacement procedure.

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When to See a Mechanic

Stop DIY work and contact a certified mechanic immediately if any of the following apply:

  • • You smell fuel, burning insulation, or see smoke.
  • • Brakes feel soft, pull hard to one side, or make grinding noises.
  • • The engine overheats, stalls repeatedly, or misfires under load.
  • • You are missing required tools, torque specs, or safe lifting equipment.
  • • You are not confident in the next step or safety outcome.