TESLA Fault

BMS-F165

BMS_f165_SW_Module_SOC_Imbalance

Also written as BMS_F165 / BMS F165 / BMS_f165_SW_Module_SOC_Imbalance / bms_f165_sw_module_soc_imbalance

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

Why does the exact Tesla alert ID matter?

Record the exact alert ID, including underscores, suffixes, and companion alerts. Tesla alerts that look similar can point to different modules, timestamps, and service procedures.

What does BMS-F165 mean?

Tesla fault code in the Battery Management System (BMS) module. The Battery Management System (BMS) has detected that there is a state of charge (SOC) imbalance in one or more of the battery packs that would otherwise be ignored by the Battery Monitor Boards (BMBs).

Original Description

The Battery Management System (BMS) has detected that there is a state of charge (SOC) imbalance in one or more of the battery packs that would otherwise be ignored by the Battery Monitor Boards (BMBs).

Affected Tesla Models

Model SModel XModel 3Model YCybertruck

What You May Notice

  • Red warning light on dashboard: The Battery Management System (BMS) has detected that there is a state of charge (SOC) imbalance in one or more of the b
  • Vehicle may refuse to drive or charge until the fault is cleared
  • Sudden power reduction or shutdown may occur while driving

How to Diagnose and Resolve

  1. 1 Stop driving immediately and move to a safe location
  2. 2 Do not attempt to charge the vehicle โ€” active fault: "The Battery Management System (BMS) has detected that there "
  3. 3 Call Tesla Roadside Assistance (+1-877-798-3752) for a flatbed tow
  4. 4 At the Service Center, Tesla technicians will inspect the HV battery pack and BMS firmware

Severity Notes

BMS-F165 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

View all BMS codes โ†’