BMS_a027_SW_Repeated_Isolation_Failure_In_Drive

High voltage isolation dropped under threshold in many drive sessions.

 Live incidence rate

<0.01% (Extremely rare)

Vehicle messages

Power limited - OK to drive
Vehicle may not restart after this drive

Impact

Vehicle will be unable to restart

Description

High voltage isolation dropped under threshold in many drive sessions.

Cause

Isolation or isolation degradation alert is set many times

Clear condition

Many drive sessions with no isolation or isolation degradation alerts

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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