: Ensure your USB drive is formatted for use on the Xbox 360 through the system storage settings.
The DLC cars and tracks should now be available in Free Play or Career mode.
: Once re-downloaded, you can use the Xbox 360 storage settings to move these files to a formatted USB drive to save internal space. The "Disc 2" Content Fix
But the passenger-side door was open. And the game’s GPS nav voice—normally a calm British woman—whispered through his headset in his grandmother’s voice:
The Xbox 360 requires a specific file structure for USB drives to act as memory units.
: Sign into the profile that originally bought the DLC. Navigate to Settings > Account > Download History to re-initiate the download directly to your USB-connected storage.