2022 GMC Hummer EVFACTORY OEM SERVICE PROCEDURE

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. Perform the following SPS Programming function:

    K16/K16B Battery Energy Control Modules and follow the on-screen instructions.

  3. Verify the control module programming is successful.
    • If the programming is not successful 
    1. Vehicle Off. Wait for greater than 1 min.
    2. Vehicle OnService Mode
    3. Perform the following SPS Programming function:

      K16/K16B Battery Energy Control Modules and follow the on-screen instructions.

      • If the programming is not successfulReplace the appropriate component: K16 Battery Energy Control Module or K16B Battery Energy Control Module 2
      • Go to next step: If the programming is successful
    4. 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.

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