2024 Chevrolet Traverse Limited High Country, 4WDFACTORY OEM SERVICE PROCEDURE

Circuit/System Verification

  1. Ignition ON/Vehicle In Service Mode.
  2. Verify that DTC U0028 or U0029 is not set.
    • Go to next step: If none of the DTCs are set 
  3. Verify DTC B101D or B101E is not set.
    • If DTC B101D or B101E is not set 

      All OK

    • Go to next step: If DTC B101D or B101E is set 
  4. If equipped, remove SD card from X20 Memory Card Receptacle.
  5. Verify DTC B101D or B101E is not set.
    • Go to next step: If DTC B101D or B101E is set 
  6. Program the device that sets the DTC.
  7. Verify DTC B101D or B101E is not set.
    • If DTC B101D or B101E is set 

      Replace the device that sets the DTC.

    • Go to next step: If DTC B101D or B101E is not set 
  8. 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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