UI family
UI_a084_SerializerError
Not Available
What does the UI_a084_SerializerError alert mean?
Display status check failed due to datastream serialization error.
What you'll see in your Tesla
- Not Available
What triggers it
The serialiser check failed because the I2C bus 2 failed to open or the serializer chip state check failed.
When it clears
The I2C bus 2 has to initialize and the serialization chip state check has to pass.
Potential impact
Touchscreen is blank, unresponsive or has limited functionality.
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.