BMS family
BMS_a100_ThermalEventSuspected
Shutdown - Pull over and exit vehicle safely
What does the BMS_a100_ThermalEventSuspected alert mean?
The battery management system (BMS) detects conditions that indicate a potential propagating thermal event.
What you'll see in your Tesla
- Shutdown - Pull over and exit vehicle safely
- Immediate service is required
What triggers it
Any detection mechanism (e.g. VoltageLoss, VoltageDeviation) has set and is enabled to signal a suspected thermal event.
When it clears
All detection mechanisms have cleared
Potential impact
Pack may remain inoperable and should be serviced according to proper procedures.
Affected models
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
Model Y 2025+
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.