Cellular Phone

The following service procedures require either a programming or a setup event performed for a complete repair. Do not reprogram the mobile telephone control module, unless directed by a service procedure, or a service bulletin.

Mobile Telephone Control Module Replacement and/or Programming

If the mobile telephone control module needs to be replaced and/or reprogrammed, the following procedures must be performed:

1. Connect a scan tool to the vehicle and access SPS. Refer to Service Programming System (SPS).
2. Perform the SPS function Mobile Telephone Control Module Programming and follow the on-screen instructions.
3. Perform the SPS function Onstar Activation and follow the on-screen instructions.
4. Clear DTCs after completing the programming procedure.