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.