Reconfiguration, OnStar system: Notes

The OnStar control module has a 10 digit station code (STID) and an 11 digit electronic serial number (ESN). These numbers are used by the National Cellular Network and OnStar to identify the vehicle. As these numbers are connected to the car, the unit must not  be replaced with a unit from another car.

When replacing the OnStar control module the system must be reconfigured. If the reconfiguration does not occur or fails then the system will not work correctly.

This system cannot be reset by depressing the "white dot button", instead this generates a diagnostic trouble code.