Solutions: Memory Card Shows Invalid File System (RAW) 1. These optimizations complement the many benefits of your in-vehicle navigation system. The new maps will either arrive as a DVD disc, an SD card, or USB stick depending on how your GM’s system is set-up.
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If you do not have an SD card slot then we will include a replacement MCR (Memory Card Reader) that you install to your USB media hub that is fully compatible with the included Genuine GM navigation SD map card. Click the drive to format on the left side of the disk utility. Press the FM screen button to display the FM main page and play the current or last tuned FM station. Read more about Terrain reliability » 2017 GMC Terrain Recalls. Jeppesen Skybound card programmer is used for programming monthly NavData into the card in the left slot.
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Note: Make sure that any previous update files have been properly removed from the microSD card.
Gmc terrain sd card error Method 4: Reinstall the driver.