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Home >> Chevrolet >> 2021 >> Traverse L >> Repair and Diagnosis >> External Pages >> Different car >> Section 53 (Programming And Setup) >> Repair Instructions >> K71 Transmission Control Module: Programming and Setup (8L45 (M5N)) >> Unsuccessful Programming Recovery
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Unsuccessful Programming Recovery

WARNING: This page is about a different car, the 2020 Cadillac CT4. However, it is still accessible from the selected car via links, so may be relevant.

In the event of an interrupted or unsuccessful programming event, perform the following:

  1. Ignition/Vehicle - Off
  2. Ensure the control module, DLC, and programming tool connections are secure and the SPS software is up to date.
  3. Verify the SPS software is up to date.
  4. Verify the control module can be reprogrammed.
    • If the control module cannot be programmed 

      Replace the component:K71 Transmission Control Module

    • Go to next step: If the control module can be reprogrammed 
  5. All OK.