UI family
UI_a104_DashcamUsbDriveMissing
Tesla Dashcam USB drive not detected
What does the UI_a104_DashcamUsbDriveMissing alert mean?
The Tesla Dashcam / Sentry Mode USB drive was installed but is missing or not available.
What you'll see in your Tesla
- Tesla Dashcam USB drive not detected
- The drive is missing or not available
What triggers it
The Tesla Dashcam / Sentry Mode USB drive is missing or not available.
When it clears
The Tesla Dashcam / Sentry Mode USB drive is re-installed.
Potential impact
The Tesla Dashcam / Sentry Mode USB features may be unavailable.
Affected models
Cybertruck
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
Model Y 2025+
Semitruck
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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.