BMS-U016
BMS_u016_FEIM_Delayed_Ctr_Close
Also written as BMS_U016 / BMS U016 / BMS_u016_FEIM_Delayed_Ctr_Close / bms_u016_feim_delayed_ctr_close
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-U016 mean?
Tesla unknown code in the Battery Management System (BMS) module. This alert indicates the Battery Management System (BMS) has requested another isolation check before closing the contactors.
Original Description
This alert indicates the Battery Management System (BMS) has requested another isolation check before closing the contactors.
Affected Tesla Models
What You May Notice
- BMS-U016 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-U016 is a diagnostic or informational code in the Battery Management System system. Typically no immediate action is required.