EPASTS family
EPASTS_a257_dcvmUnderVolt
Not Available
What does the EPASTS_a257_dcvmUnderVolt alert mean?
This alert is reported by the DCVoltageMonitor_T222 (DCVM) component when underVoltage is detected.
What you'll see in your Tesla
- Not Available
What triggers it
EPAS has detected supply undervoltage (less than 9v [Calibratable]).
When it clears
Perform EPAS ECU power cycle
Potential impact
Assist is disabled.
Affected models
Model Y
Model Y 2025+
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