The Redundant Control Unit (RCU) has experienced a solenoid valve driver issue.
<0.01% (Extremely rare)
Backup power braking assist unavailable
OK to drive - Schedule service
The RCU may not be able to perform backup power braking assist.
The Redundant Control Unit (RCU) has experienced a solenoid valve driver issue.
The RCU has experienced a solenoid value driver issue during actuation or startup checks.
The RCU valve driver checks pass after the RCU is power cycled. If the issue persists, the RCU may need to be replaced.
Model Y 2025+
customer, service-fix
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