MyTeslaMate
BMS family

BMS_a145_SW_SOC_Change

Not Available

What does the BMS_a145_SW_SOC_Change alert mean?

A State of Charge (SOC) based on Open Circuit Voltage (OCV), known as SocByOcv, correction of greater than 3% to high voltage (HV) battery SOC occurred during the previous resting period (time vehicle was not used). This may cause a significant change in displayed range.

What you'll see in your Tesla

  • Not Available

What triggers it

The battery management system (BMS) updated the high voltage (HV) battery State of Charge (SOC) by more than 3% based on SocByOcv (State of Charge by Open Circuit Voltage) while the vehicle rested (was not used).

When it clears

This alert is primarily for logging purposes and should clear automatically.

Potential impact

Significant change in displayed range (range variation) while the vehicle was not used.

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.