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Visual/Physical Inspection Inspect for aftermarket devices which could affect the operation of the system. Refer to Inspect the easily accessible or visible system components for obvious damage or conditions Intermittent Faulty electrical connections or wiring may be the cause of intermittent conditions. Refer to Symptom List Refer to a symptom diagnostic procedure from the following list in order to diagnose the OnStar One or More Buttons Inoperative OnStar Call Center Remote Function Requests Inoperative Unable to Contact OnStar Call Center OnStar Microphone Inoperative - Caller Cannot Be Heard OnStar Voice Recognition Inoperative OnStar Button LED Inoperative No (or Noisy) OnStar Audio OnStar Global Positioning System (GPS) Data Not Current or Inaccurate OnStar Talk Button Inoperative SYMPTOMS - ENTERTAINMENT Visual/Physical Inspection Inspect for aftermarket devices which could affect the operation of the Radio/Audio system. Inspect the easily accessible or visible system components for obvious damage or conditions IMPORTANT: Review the system operation in order to familiarize yourself with the system functions. Refer to Radio/Audio System Description
2007 Hummer H3 2007 ACCESSORIES AND EQUIPMENT Cellular, Entertainment and Navigation - H3
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