EPASTP family
EPASTP_a013_mcusscSffMonitoringFailed
Not Available
What does the EPASTP_a013_mcusscSffMonitoringFailed alert mean?
This alert is reported by the MCUSafetyStartupChecks_TC3x (MCUSSC) component when there is a MCU internal failure (The Safety FlipFlop Monitoring tests failed for at least one of the MTU or SMU instances).
What you'll see in your Tesla
- Not Available
What triggers it
EPAS microcontroller internal safety monitoring (SafetyFF at MTU,SMU) reported failure at startup.
When it clears
Perform EPAS ECU power cycle.
Potential impact
EPAS full loss of assist.
Affected models
Model Y
Model Y 2025+
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