Unsuccessful Programming Recovery

WARNING: This page does not describe the selected car, but rather 6 other vehicles, including the 2015 GMC Yukon XL, 2015 GMC Yukon, 2015 Chevrolet Tahoe, 2015 Chevrolet Suburban, and 2015 Cadillac Escalade ESV. 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:

Ignition ON. Ensure the control module, DLC, and programming tool connections are secure and the SPS software is up to date.
Reprogram the control module following the on-screen instructions.
- If the control module cannot be reprogrammed
1. Ignition OFF, disconnect the MDI, and exit SPS.
2. Ignition ON, reconnect the MDI, and access SPS.
3. Reprogram the control module following the on-screen instructions.
  - If the control module cannot be reprogrammed
  1. Ignition OFF, disconnect the MDI, and exit SPS.
  2. Disconnect vehicle battery for 2 minutes. Reconnect battery.
  3. Ignition ON, reconnect the MDI, and access SPS.
  4. Reprogram the control module following the on-screen instructions.
- If the control module cannot be reprogrammed
  Replace the K20 Engine Control Module.
- If the control module can be reprogrammed
All OK.