Circuit/System Verification
WARNING: This page is about a different car, the 2008 Cadillac DTS. However, it is still accessible from the selected car via links, so may be relevant.
- Ignition ON, radio ON, set volume to comfortable level and press OnStar Center Call button.
- Verify Connecting to OnStar message is heard clearly through the audio system.
- If OnStar message is not heard, go to Circuit/System Testing .
- Tune radio to a known good station and verify that audio is heard clearly through all speaker channels.
- If no, refer to Speaker Malfunction .
- If the radio is replaced, the new radio must have the setup procedure performed. Refer to Radio Setup .