BMS-W050
BMS_w050_SW_BMB_MIA
Also written as BMS_W050 / BMS W050 / BMS_w050_SW_BMB_MIA / bms_w050_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-W050 mean?
Tesla warning 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 (MIA).
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 (MIA).
Affected Tesla Models
What You May Notice
- Battery management warning: There is a communication problem between the Battery Management System (BMS) and the Battery Monitoring Boards (BMBs). O
- Charging speed may be limited or sessions interrupted early
- Reduced estimated range may appear on the touchscreen
How to Diagnose and Resolve
- 1 Perform a soft reboot: hold both scroll wheels until the screen restarts
- 2 Try a full charge cycle to recalibrate the BMS
- 3 If "There is a communication problem between the Batte" persists after reboot, schedule a Tesla Service appointment
- 4 Avoid DC fast charging until the issue is resolved
Severity Notes
BMS-W050 is a Warning in the Battery Management System system. Schedule service soon. Monitor your vehicle for additional warnings.