UI family
UI_a156_UsbFrontHubInstallMismatch
Not Available
What does the UI_a156_UsbFrontHubInstallMismatch alert mean?
The front hub device has appeared on a vehicle where front hub data is configured as not available.
What you'll see in your Tesla
- Not Available
What triggers it
A front USB hub device has been installed a vehicle configured with no data connection.
When it clears
Vehicle can be reconfigured as having a front hub with a data connection.
Potential impact
The UI experience and features may not match front hub capabilities.
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.