Unsuccessful Programing Recovery
WARNING: This page is about a different car, the 2023 GMC Sierra 3500 HD and 2023 GMC Sierra 2500 HD. 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 steps:
- Ensure the K4 Step Assist Control Module, DLC and programming tool connections are secure and the SPS software is up to date.
- Vehicle Power Mode - Off.
- Access SPS and follow the on-screen instructions for the K4 Step Assist Control Module.
- Verify the K4 Step Assist Control Module can be reprogrammed.
- If the K4 Step Assist Control Module cannot be reprogrammed
- Cycle the Vehicle Power Mode OFF for greater than 1 minute.
- Access SPS and follow the on-screen instructions for the K4 Step Assist Control Module.
- Verify the K4 Step Assist Control Module can be reprogrammed.
- If the K4 Step Assist Control Module cannot be reprogrammed, replace the K4 Step Assist Control Module.
- Go to next step: If the K4 Step Assist Control Module can be reprogrammed.
- All Ok.
- Go to next step: If the K4 Step Assist Control Module can be reprogrammed
- All Ok.