BMS family
BMS_a117_SW_Delta_SOC_Weak_Short
Not Available
What does the BMS_a117_SW_Delta_SOC_Weak_Short alert mean?
A given brick has an alpha signal below the alert alpha threshold.
What you'll see in your Tesla
- Not Available
What triggers it
The computed alpha estimate for a brick is repeatedly below the alert alpha threshold. The threshold comes over the Controller Area Network (CAN) via signal MCU_dSocAlertThreshold.
When it clears
The CLEAR_SOC1_SNAPSHOT UDS StartRoutine is invoked.
Potential impact
This alert is primarily informational and is used for logging purposes. No expected impact on vehicle functionality.
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.