BMS-F120
BMS_f120_SW_Moisture_CtrlSys
Also written as BMS_F120 / BMS F120 / BMS_f120_SW_Moisture_CtrlSys / bms_f120_sw_moisture_ctrlsys
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-F120 mean?
Tesla fault code in the Battery Management System (BMS) module. There is a possible issue with the moisture control system. This may be based on measuring the current drawn by the sub-system or the battery humidity response when using the system.
Original Description
There is a possible issue with the moisture control system. This may be based on measuring the current drawn by the sub-system or the battery humidity response when using the system.
Affected Tesla Models
What You May Notice
- Red warning light on dashboard: There is a possible issue with the moisture control system. This may be based on measuring the current drawn by the sub-
- 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: "There is a possible issue with the moisture control system. "
- 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-F120 is classified as a Fault, indicating a critical issue in the Battery Management System system. Do not continue driving and contact Tesla Service immediately.