EPASTS family
EPASTS_a074_rsthUnexpectedAlarm
Not Available
What does the EPASTS_a074_rsthUnexpectedAlarm alert mean?
This alert is reported by the HwResetHandler_TC3x (RSTH) component if various misc error detection alarms.
What you'll see in your Tesla
- Not Available
What triggers it
EPAS application component ResetHandler detected unexpected uC alarm.
When it clears
Perform EPAS Software update. Replace HW if the alert persists.
Potential impact
EPAS reset
Affected models
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.