TESLA Fault

BMS-F146

BMS_f146_SW_Brick_Overdischarged

Also written as BMS_F146 / BMS F146 / BMS_f146_SW_Brick_Overdischarged / bms_f146_sw_brick_overdischarged

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-F146 mean?

Tesla fault code in the Battery Management System (BMS) module. An over discharged cell is preventing recharge.

Original Description

An over discharged cell is preventing recharge.

Affected Tesla Models

Model SModel XModel 3Model YCybertruck

What You May Notice

  • Red warning light on dashboard: An over discharged cell is preventing recharge.
  • 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 — active fault: "An over discharged cell is preventing recharge."
  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-F146 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 Tesla alert code in the Battery Management System (BMS) modu... BMS_a003 Tesla alert code in the Battery Management System (BMS) modu... BMS_a004 Tesla alert code in the Battery Management System (BMS) modu... BMS_a007 Tesla alert code in the Battery Management System (BMS) modu... BMS_a016 Tesla alert code in the Battery Management System (BMS) modu... BMS_a017 BMS_a018
View all BMS codes →