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OnStar Button LED Inoperative
ONSTAR BUTTON LED INOPERATIVETEST DESCRIPTION
Steps 1-10:
The numbers below refer to the step numbers on the diagnostic table.
3. Determines if the OnStar(R) status LED has the necessary GREEN LED signal circuit voltage.
5. If the GREEN LED signal is shorted to voltage then the OnStar(R) 3-button assembly has been damaged and the OnStar(R) 3-button assembly must be replaced.