TESLA Fault

BMS-F008

BMS_f008_HW_HVIL

Also written as BMS_F008 / BMS F008 / BMS_f008_HW_HVIL / bms_f008_hw_hvil

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-F008 mean?

Tesla fault code in the Battery Management System (BMS) module. There is a problem with the High Voltage Interlock Loop (HVIL).

Original Description

There is a problem with the High Voltage Interlock Loop (HVIL).

Affected Tesla Models

Model SModel XModel 3Model YCybertruck

What You May Notice

  • Vehicle will not power on
  • No response when pressing brake to wake the car
  • Tesla app shows the car as unreachable or offline

How to Diagnose and Resolve

  1. 1 Check that all high-voltage connectors and covers are fully seated (relevant if recent service was performed)
  2. 2 Check that the frunk, trunk, and charge port door are fully closed
  3. 3 Perform a hard reboot: hold brake + both scroll wheels for 10 seconds
  4. 4 If the vehicle still will not power on, call Tesla Roadside Assistance
  5. 5 Do not attempt to open HV battery enclosures yourself — HVIL circuits carry lethal voltage

Severity Notes

BMS-F008 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 →