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Home >> GMC >> 2007 >> Acadia SLE, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 404 (Cellular System, Entertainment System, And Navigation System) >> Diagnostic Information and Procedures >> No (or Noisy) OnStar Audio >> Circuit/System Verification

Circuit/System Verification

WARNING: This page is about a different car, the 2007 Cadillac XLR. However, it is still accessible from the selected car via links, so may be relevant.
  1. Ignition ON, radio ON, set volume to comfortable level and press OnStar Center Call button.
  2. Verify Connecting to OnStar message is heard clearly through the audio system.
  3. Tune radio to a known good station and verify that audio is heard clearly through all speaker channels.
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