BMS-A160
BMS_a160_SW_FC_Ctr_Clean_Failed
Also written as BMS_A160 / BMS A160 / BMS_a160_SW_FC_Ctr_Clean_Failed / bms_a160_sw_fc_ctr_clean_failed
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-A160 mean?
Tesla alert code in the Battery Management System (BMS) module. Attempts at clearing the FC contactor weld via contactor cleaning have failed The voltage of one or more of the stacks in the HV battery is too high
Original Description
Attempts at clearing the FC contactor weld via contactor cleaning have failed The voltage of one or more of the stacks in the HV battery is too high
Affected Tesla Models
What You May Notice
- BMS-A160 may appear with another Tesla alert in the Battery Management System (BMS) system.
- The vehicle may limit charging, driving, comfort, or safety features depending on the active alerts.
- The alert may clear after sleep, but recurring alerts should be treated as service-relevant.
How to Diagnose and Resolve
- 1 Reboot the vehicle (hold both scroll wheels for 10 seconds)
- 2 Check the Tesla app for any pending software updates
- 3 Monitor the alert over 1–2 charge cycles; schedule service if it recurs
Severity Notes
BMS-A160 is an Alert in the Battery Management System system. Confirm the vehicle screen and Tesla app show no driving or charging restrictions, and schedule service if the alert returns.