2025 Chevrolet Traverse LT, FWDFACTORY OEM SERVICE PROCEDURE

Unsuccessful Programming Recovery

NOTE:
  • If programming is still not successful after the second programming attempt, check the following:
  • For facilities using an internet firewall, ensure firewall settings are not blocking file downloads and/or require elevated rights.
  • For United States and Canada GM dealers, the appropriate firewall settings can be found in the GM DEALER INFRASTRUCTURE & SECURITY GUIDELINES (DISG) section 2.d.vii.
  1. Verify the control module, data link connector and programming tool connections are secure and the tool software is up to date.
  2. Ignition - On/Vehicle - In Service Mode
  3. Verify the control module programming is successful.
    • If the programming is not successful 
    1. Ignition/Vehicle - Off - For greater than 3 min
    2. Ignition - On/Vehicle - In Service Mode
    3. Access SPS and follow the on-screen instructions for the control module: K45 Powertrain Control Module
    4. Perform the necessary programming and setup procedure:
      • Select: Refresh Characterization Data
      • Select: Replace - Control Valve Body
      • Select: Replace - Transmission
      • If the programming is not successful

        Replace the component: K45 Powertrain Control Module

      • Go to next step: If the programming is successful
    5. All OK.
    • Go to next step: If the programming is successful 
  4. All OK.
Factory Service Tools

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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.