EPASTS family
EPASTS_a023_btarcCorruptionCheck
Not Available
What does the EPASTS_a023_btarcCorruptionCheck alert mean?
This alert is reported by the BlackoutTimeAndResetCounter_R12 (BTARC) component when fast restart data has been corrupted.
What you'll see in your Tesla
- Not Available
What triggers it
EPAS uC internal memory (BTARC management storage) failure (corrupted information) at startup.
When it clears
Perform EPAS Software update.
Potential impact
EPAS full loss of assist.
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.