The battery management system (BMS) has detected that the shunt is unavailable (SNA).
<0.01% (Extremely rare)
Vehicle may not restart
Service is required
Inability to charge, drive, or support the low voltage (LV) system
The battery management system (BMS) has detected that the shunt is unavailable (SNA).
The BMS does not receive consecutive current readings from the high voltage processor (HVP).
The BMS receives all of the expected messages from the HVP.
Model 3 2017-2023, Model 3 2024+, Model S 2021+, Model X 2021+, Model Y, Model Y 2025+
customer, service-fix
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