UI family
UI_a134_DashcamUsbDriveNoMedium
USB drive has no filesystem
What does the UI_a134_DashcamUsbDriveNoMedium alert mean?
The USB Drive has experiened a no medium error
What you'll see in your Tesla
- USB drive has no filesystem
- Drive will not mount and should be unplugged
What triggers it
Mounterd has experienced an error 123 when scanning for block filesystems
When it clears
The drive should be removed since it has no valid filesystem
Potential impact
The USB device has no filesystem and cannot communicate
Affected models
Cybertruck
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
Model Y 2025+
Track your Tesla's alerts automatically
Alerts like this reach MyTeslaMate through your car's Tesla telemetry API. MyTeslaMate logs every alert your Tesla reports and turns it into readable history and real-time notifications — hosted TeslaMate with no server to run.