TESLA Fault

BMS_f064

BMS_f064_SW_BrickV_Imbalance

System
BMS
Battery Management System
Type
Fault
Category
Battery
Severity
Fault (Critical)

What does BMS_f064 mean?

Tesla fault code in the Battery Management System (BMS) module. The Battery Management System (BMS) has detected that there is a brick voltage imbalance in the high voltage (HV) battery pack. If this alert is present, maxBrickV - minBrickV may have grown faster than 25 mV while not driving or maxBrickV - minBrickV may have been > 0.5 V for more than 3 hours while the contactors were open. This alert was formerly named BMS_w064_SW_SOC_Imbalance in firmware versions prior to 17.20.26. If BMS_w064_SW_SOC_Imbalance appears on the vehicle or in the logs, update the vehicle firmware to the current version.

Original Description

The Battery Management System (BMS) has detected that there is a brick voltage imbalance in the high voltage (HV) battery pack. If this alert is present, maxBrickV - minBrickV may have grown faster than 25 mV while not driving or maxBrickV - minBrickV may have been > 0.5 V for more than 3 hours while the contactors were open. This alert was formerly named BMS_w064_SW_SOC_Imbalance in firmware versions prior to 17.20.26. If BMS_w064_SW_SOC_Imbalance appears on the vehicle or in the logs, update the vehicle firmware to the current version.

Severity Notes

BMS_f064 is classified as a Fault, indicating a critical issue in the Battery Management System system. Do not continue driving and contact Tesla Service immediately.

Other BMS Codes

BMS_a001 BMS_a002 The Gateway packPerformanceDeviation config does not match t... BMS_a003 BMS was unable to read a pack birth date from the calibratio... BMS_a004 The pack hot seal test has not completed in the lifetime of ... BMS_a007 Charge rate is limited until cell temperatures increase... BMS_a016 The module IDs do not match the pack type set by the config ... BMS_a017 BMS_a018
View all BMS codes →

Tesla alert codes sourced from the community-maintained Tesla Alerts Dictionary. This information is for educational purposes only. Always consult Tesla Service for official diagnosis and repairs.