Having problems with your Ford Mustang ?
Rear defroster not working - Mustang Ford Cars & Trucks
Check the fuse it should be labeled in the fuse panel as rear def. If its blown replace it and if that doesnt fix it or if the fuse blows again then u have an electrical problem and will need to have a technician look at it.
Repair Help & Product Troubleshooting for Ford Mustang
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