The LED on the Control Button Unit, Malfunction

The LED on the control button unit, malfunction







Fault symptoms
The LED on the control button unit, malfunction.
The LED shows a green light when the ignition is switched on.

Conditions
No fault codes stored in the car which affect the status of the LED.

Diagnostic help
The LED shows a green or a red light to indicate the system status.

- Continuous Green - Indicates that the OnStar system is activated.
- Blinking Green - Indicates that a call is in progress.
- Continuous Red - Indicates that the system is not functioning correctly.
- Blinking Red - Indicates that the selected service is active but that there is a fault in the system.

Fault-related functions in the diagnostic tool
Activation of the LED, green/red.

Fault Diagnosis Procedure (2005;2006;2007;2008;2009;2010)