BMS family
BMS_w107_SW_Cell_Voltage_Sensor
Vehicle may not restart
What does the BMS_w107_SW_Cell_Voltage_Sensor alert mean?
The battery management system (BMS) detects a brick voltage measurement that is inaccurate.
What you'll see in your Tesla
- Vehicle may not restart
- Service is required
What triggers it
A brick reports an inaccurate voltage measurement to the BMS. Alert log signal data provides information on the specific inconsistency.
When it clears
All bricks report nominal voltage measurement readings.
Potential impact
Inability to charge, drive, or support the low voltage (LV) system
Affected models
Model S 2012-2020
Model X 2015-2020
Track your Tesla's alerts automatically
Alerts like this reach MyTeslaMate through your car's Tesla telemetry API. MyTeslaMate logs every alert your Tesla reports and turns it into readable history and real-time notifications — hosted TeslaMate with no server to run.