EPASTS family
EPASTS_a016_mcufcCsErrorCheckFail
Not Available
What does the EPASTS_a016_mcufcCsErrorCheckFail alert mean?
This alert is reported by the MCUFlashChecks_TC3x (MCUFC) component when CRC check failed, consistency of non-inited memory sections did not keep during the restart.
What you'll see in your Tesla
- Not Available
What triggers it
EPAS microcontroller internal memory (non-inited) checks failed (CRC) at startup.
When it clears
Perform EPAS Software update.
Potential impact
EPAS full loss of assist.
Affected models
Model Y
Model Y 2025+
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.