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Home >> Chevrolet >> 2007 >> HHR LS, Standard >> Repair and Diagnosis >> Accessories & Equipment >> Entertainment Systems >> Cellular System, Entertainment System, And Navigation System >> Diagnostic Information and Procedures >> OnStar Microphone Inoperative - Caller Cannot Be Heard >> Circuit/System Verification

Circuit/System Verification

Ignition ON, press OnStar® Call button. Verify that your voice cannot be heard clearly by the OnStar® Call Center.