Communication Interface Module Replacement
WARNING: This page is about a different car, the 2006 Buick Lucerne. However, it is still accessible from the selected car via links, so may be relevant.
If the OnStar(R) communication interface module is replaced, the setup procedure needs to be performed. Please refer to OnStar Reconfiguration (w/o SPS Programming Gen.3 and prior) or OnStar Reconfiguration (with TIS 2 Web and SPS Programming) in Cellular Communication.