BMS_a067_CAC_Imbalance_Limiting

The battery management system (BMS) detects that the calculated Amp-hour capacity (CAC) difference between bricks within a single module exceeds the acceptable threshold, which may reduce battery performance.

Live incidence rate

<0.01% (Extremely rare)

Vehicle messages

High voltage battery performance limited
OK to drive - Schedule service soon

Impact

Battery performance may be limited, which may reduce maximum range and may limit charging performance.

Description

The battery management system (BMS) detects that the calculated Amp-hour capacity (CAC) difference between bricks within a single module exceeds the acceptable threshold, which may reduce battery performance.

Cause

The BMS detects that the estimated CAC imbalance between the average CAC and the minimum CAC of bricks within a single module exceeds the acceptable threshold.

Clear condition

The BMS detects that the estimated CAC imbalance between the average CAC and the minimum CAC of bricks within a single module is within the acceptable threshold.

Models

Model 3 2017-2023, Model 3 2024+, Model S 2021+, Model X 2021+, Model Y, Model Y 2025+

Visibility

customer, service-fix

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