UI family
UI_a008_TouchScreenError
Touchscreen unresponsive
What does the UI_a008_TouchScreenError alert mean?
Touchscreen driver error detected.
What you'll see in your Tesla
- Touchscreen unresponsive
- Press and hold scroll wheels to restart
What triggers it
One of the following touchscreen errors was detected: ERROR_UNRECOGNIZED_PACKET, ERROR_BAD_CONNECTION, ERROR_NOT_OPENED, ERROR_NOT_MULTITOUCH, ERROR_SIGACQ, ERROR_CFGOBJ, ERROR_NOT_CLOSED, ERROR_READ, ERROR_BAD_DEVICE.
When it clears
Touchscreen returned to normal operation: NO_ERROR.
Potential impact
Touchscreen is 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
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.