Communication Interface Module Replacement
WARNING: This page is about a different car, the 2008 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.
If the OnStar® communication interface module is replaced, the setup procedure needs to be performed. Please refer to OnStar Reconfiguration (with TIS 2 Web Gen 4 and later) or OnStar Reconfiguration (without TIS 2 Web Gen 3 and prior) .