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Home >> Cadillac >> 2008 >> STS V >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Cellular System, Entertainment System, And Navigation System >> Diagnostic Information and Procedures >> Navigation System - Voice Recognition Inoperative >> Circuit/System Description
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Circuit/System Description

The vehicle navigation radio and OnStar® system both utilize the cellular microphone located on the inside rearview mirror to receive voice commands. The navigation radio receives an audio voice signal from the vehicle communication interface module (VCIM).

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