This alert is reported by the MCUSafetyStartupChecks_TC3x (MCUSSC) component when there is a MCU internal failure (The Secondary Monitor and Standby SMU Built in Self Test failed).
<0.01% (Extremely rare)
None displayed
EPAS full loss of assist.
This alert is reported by the MCUSafetyStartupChecks_TC3x (MCUSSC) component when there is a MCU internal failure (The Secondary Monitor and Standby SMU Built in Self Test failed).
EPAS microcontroller (MON)BIST failed (SecondaryMonitor versus Standby SMU) at startup.
Perform EPAS ECU power cycle.
Model Y, Model Y 2025+
service-fix
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