Circuit/System Testing

WARNING: This page is about a different car, the 2007 Suzuki XL7. However, it is still accessible from the selected car via links, so may be relevant.

Verify the OnStar® voice recognition is operating normally.
- If the OnStar® voice recognition is inoperative, refer to VOICE RECOGNITION INOPERATIVE .
- If the OnStar® voice recognition operates normally, test the audio mic in circuits for an open, short to ground or a short to power. If all circuits test normal replace the radio.