UI family
UI_a240_ethError
Not Available
What does the UI_a240_ethError alert mean?
The User Interface (UI) Electronic Control Unit (ECU) detects a network device error during runtime.
What you'll see in your Tesla
- Not Available
What triggers it
The UI ECU detects a network error during runtime for the Ethernet communication device.
When it clears
The Ethernet interface is operational.
Potential impact
The touchscreen UI may not operate as expected, and the Infotainment system may reboot.
Affected models
Cybertruck
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
Model Y 2025+
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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.