OnStar - Module - Programming - Controller Replacement

Once diagnostics leads to an OnStar controller replacement, the Technician will need to place a call to the OnStar call center and provide information from the label on the replacement controller. This information provided to OnStar will allow the call center to recognize the new module and transfer the required personal information to the new controller. Each controller had a unique ID, which is required for OnStar to recognize the controller when a call is placed. In addition to the numbers from the controller, the technician will provide the VIN from the vehicle along with the module information. The CIM information is available on the tools.

When diagnostics determine the Vehicle Communication Interface Module (CIM) requires replacement the Technician must perform the following configuration with the OnStar call center.

1. IMPORTANT: This procedure must be performed in order for the OnStar system to recognize the vehicle and customer.
2. Record the STID number from the label on the new Module (10 digits)
3. Record the ESN number from the label on the new Module (11 digits)
4. Install the new module CIM
5. Press and hold the OnStar "End Call" button (black with white dot) watch for the OnStar LED status light to change from green to red to green.
6. After replacement, press the blue OnStar button twice. When the OnStar advisor responds, state that the vehicle has a new module and include the information that was recorded.
7. The vehicles VIN must be provided.
8. Return the CIM for core credit.