This alert is reported by the MCUSafetyStartupChecks_TC3x (MCUSSC) component when there is a MCU internal failure. (Memory Built-In-SelfTest 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. (Memory Built-In-SelfTest failed).
EPAS microcontroller memory (M)BIST failed at startup.
Perform EPAS ECU power cycle.
Model Y, Model Y 2025+
service-fix
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