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HOMESERVICE MANUALSCHEVROLET2018TAHOE FL, 4WD, GASREPAIR AND DIAGNOSIS (SINGLE PAGE)ACCESSORIES & EQUIPMENTCOMMUNICATION DEVICESPROGRAMMING AND SETUP - ALL SYSTEMSREPAIR INSTRUCTIONSK71 TRANSMISSION CONTROL MODULE: PROGRAMMING AND SETUPUNSUCCESSFUL PROGRAMMING RECOVERY
2018 Chevrolet Tahoe FL, 4WD, Gas

Unsuccessful Programming Recovery

2018 Chevrolet Tahoe FL, 4WD, GasSECTION Unsuccessful Programming Recovery

If programming a control module is not successful, perform the following procedure:

  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. Access SPS and follow the on-screen instructions for the control module: K71 Transmission Control Module - Programming

    Verify the control module programming is successful.

    • If the programming is not successful 
    1. Ignition/Vehicle - Off - For greater than 2 min
    2. Ignition - On/Vehicle - In Service Mode
    3. Perform the SPS function: K71 Transmission Control Module - Programming
      • If the programming is not successful - Replace the component: K71 Transmission Control Module
      • Go to next step, if the programming is successful.
      1. Select: MCVM Operations - If applicable
      2. Select: Setup - Follow the on screen instructions.

        If setup is not an available option - Perform the appropriate learn/reset procedure with the scan tool

      3. Clear DTCs after programming is complete. Clearing powertrain DTCs will set the Inspection/Maintenance (I/M) system status indicators to No.
      4. All OK.
      • Go to next step, if the programming is successful 
  4. Select: MCVM Operations - If applicable
  5. Select: Setup - Follow the on-screen instructions.

    If setup is not an available option - Perform the appropriate learn/reset procedure with the scan tool

  6. Clear DTCs after programming is complete. Clearing powertrain DTCs will set the Inspection/Maintenance (I/M) system status indicators to No.
  7. All OK.
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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.