General Information

The OnStar Remote Control 3-Button assembly is part of the Inside Rear View Mirror (ISRVM) which allows the driver to contact the OnStar Call Center. Each button determines a specific function such as normal OnStar contact, call termination, placing outgoing cellular calls and emergency contact of OnStar.
^ The red emergency button sends a priority call to the OnStar Call Center.
^ The OnStar button connects the user to the Call Center for assistance.
^ The button with a "dot" when pressed allows the user to place outgoing cellular calls, answer and end other calls.

The Remote Control 3-Button assembly is supplied power from the CIM. Using a series of resistors, each button will return a different voltage to the CIM. The CIM will determine which button was pressed on the button assembly.