Suspected external leakage which could lead to brake fluid loss.
<0.01% (Extremely rare)
None displayed
System will be running with full assistant for driver brake request.
Suspected external leakage which could lead to brake fluid loss.
External, PRV, or Plunger Seal leakage, Fault is set if Brake fluid loss is suspect when this active system test.
No internal issue is detected after changing operation cycle.
Model Y 2025+
service-fix
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