BMS-F018
BMS_f018_SW_Brick_UV
Also written as BMS_F018 / BMS F018 / BMS_f018_SW_Brick_UV / bms_f018_sw_brick_uv
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-F018 mean?
Tesla fault code in the Battery Management System (BMS) module. The Battery Management System (BMS) has detected a brick that reported a voltage below the minimum acceptable cell voltage value. If this alert is present, the contactor will open to protect the brick.
Original Description
The Battery Management System (BMS) has detected a brick that reported a voltage below the minimum acceptable cell voltage value. If this alert is present, the contactor will open to protect the brick.
Affected Tesla Models
What You May Notice
- Sudden loss of power while driving — car decelerates rapidly
- Vehicle enters failsafe mode and cannot accelerate
- Touchscreen shows critical battery alert
How to Diagnose and Resolve
- 1 Pull over safely immediately — do not continue driving
- 2 Turn off the vehicle completely
- 3 Do not attempt to restart — contactors have opened to protect the battery
- 4 Call Tesla Roadside Assistance for a flatbed tow
- 5 This is a serious fault requiring immediate battery inspection at a Service Center
Severity Notes
BMS-F018 is classified as a Fault, indicating a critical issue in the Battery Management System system. Do not continue driving and contact Tesla Service immediately.