BMS-F126
BMS_f126_HW_BMS_Blind_Mate
Also written as BMS_F126 / BMS F126 / BMS_f126_HW_BMS_Blind_Mate / bms_f126_hw_bms_blind_mate
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-F126 mean?
Tesla fault code in the Battery Management System (BMS) module. This alert indicates that there is an open circuit on the High voltage interlock loop (HVIL) blind mate pin on the high voltage (HV) rapid mate connector to the HV pack.
Original Description
This alert indicates that there is an open circuit on the High voltage interlock loop (HVIL) blind mate pin on the high voltage (HV) rapid mate connector to the HV pack.
Affected Tesla Models
What You May Notice
- Red warning light on dashboard: This alert indicates that there is an open circuit on the High voltage interlock loop (HVIL) blind mate pin on the high
- 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 Stop driving immediately and move to a safe location
- 2 Do not attempt to charge the vehicle — active fault: "This alert indicates that there is an open circuit on the Hi"
- 3 Call Tesla Roadside Assistance (+1-877-798-3752) for a flatbed tow
- 4 At the Service Center, Tesla technicians will inspect the HV battery pack and BMS firmware
Severity Notes
BMS-F126 is classified as a Fault, indicating a critical issue in the Battery Management System system. Do not continue driving and contact Tesla Service immediately.