UI family
UI_a109_DashcamUsbDriveTooSmall
Dashcam USB drive is too small
What does the UI_a109_DashcamUsbDriveTooSmall alert mean?
The USB drive for Dashcam and Sentry Mode does not have enough space to store video clips.
What you'll see in your Tesla
- Dashcam USB drive is too small
- Use drive larger than 32GB
What triggers it
The Dashcam and Sentry Mode USB drive has under 32GB of free space for video clips.
When it clears
A USB drive with 32GB or more of free space is plugged in.
Potential impact
Dashcam and Sentry Mode will continue to perform as designed, but the USB drive may fill up soon through normal use.
Affected models
Cybertruck
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
Model Y 2025+
Semitruck
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.