OnStar - Telematics Communication Interface Control Module
WARNING: This page is about a different car, the 2010 Cadillac SRX. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition is in the RUN or ACC position.
- System voltage is greater than 9 V and less than 16 V.
- The above conditions are present for greater than 1 second.