2003 GMC Savana Review

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Playing an MP3/WMA File From a Disc (In Either the DVD or CD Slot)
If a disc is inserted into the top DVD slot, the rear seat operator can turn on the video screen and use the remote control to navigate the CD (tracks only). (Tune): Turn to select MP3/WMA files. ...

Tips and Troubleshooting Chart
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Rear Vision Camera Error Messages
Service Rear Vision Camera System: This message can display when the system is not receiving information it requires from other vehicle systems. If any other problem occurs or if a problem persists, ...