BMS-F050
BMS_f050_SW_BMB_MIA
Also written as BMS_F050 / BMS F050 / BMS_f050_SW_BMB_MIA / bms_f050_sw_bmb_mia
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-F050 mean?
Tesla fault code in the Battery Management System (BMS) module. There is a communication problem between the Battery Management System (BMS) and the Battery Monitoring Boards (BMBs). One or more of the voltage or temperature sensor readings are missing.
Original Description
There is a communication problem between the Battery Management System (BMS) and the Battery Monitoring Boards (BMBs). One or more of the voltage or temperature sensor readings are missing.
Affected Tesla Models
What You May Notice
- Battery range estimate becomes erratic or inaccurate
- Charging stops unexpectedly
- Vehicle may enter reduced performance mode
How to Diagnose and Resolve
- 1 Reboot the vehicle: hold brake + scroll wheels for 10 seconds
- 2 Install any pending software updates
- 3 If alert clears, monitor battery readings for accuracy over the next few charges
- 4 If alert persists, avoid DC fast charging until inspected
- 5 Technician will check CAN bus communication between BMS and BMBs and replace any faulty boards
Severity Notes
BMS-F050 is classified as a Fault, indicating a critical issue in the Battery Management System system. Do not continue driving and contact Tesla Service immediately.