Communication Interface Module (OnStar) Programming and Setup: Notes
WARNING: This page is about a different car, the 2005 Saturn Ion Red Line, 2005 Saturn Ion 3, 2005 Saturn Ion 2, and 2005 Saturn Ion 1. However, it is still accessible from the selected car via links, so may be relevant.
Each of the following service procedures require programming or setup procedures to be performed on the communication interface module.