BMS family
BMS_a143_SW_CAC_Change
Not Available
What does the BMS_a143_SW_CAC_Change alert mean?
The battery management system (BMS) detects a large calculated amp-hour capacity (CAC) update.
What you'll see in your Tesla
- Not Available
What triggers it
The BMS detects a change in CAC above the limit threshold.
When it clears
The BMS detects that the condition clears.
Potential impact
This alert is primarily informational.
Affected models
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
Model Y 2025+
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