This alert is reported when there is a GDU communication failure.
<0.01% (Extremely rare)
None displayed
EPAS full loss of assist.
This alert is reported when there is a GDU communication failure.
EPAS ECU GDU device monitor detected failure (wrong parity bit on serial communication). After consecutives retries and error is still present.
Perform EPAS Software update. Replace HW if the alert persists.
Model Y, Model Y 2025+
service-fix
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