BMS-F089
BMS_f089_SW_THC_MIA
Also written as BMS_F089 / BMS F089 / BMS_f089_SW_THC_MIA / bms_f089_sw_thc_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-F089 mean?
Tesla fault code in the Battery Management System (BMS) module. The Battery Management System (BMS) detected that responses from the thermal controller (THC) was missing on the Controller Area Network (CAN) bus. If this alert is present, the BMS may not have been receiving the full set of messages it expects to receive from the THC for the 10x message period.
Original Description
The Battery Management System (BMS) detected that responses from the thermal controller (THC) was missing on the Controller Area Network (CAN) bus. If this alert is present, the BMS may not have been receiving the full set of messages it expects to receive from the THC for the 10x message period.
Affected Tesla Models
What You May Notice
- Red warning light on dashboard: The Battery Management System (BMS) detected that responses from the thermal controller (THC) was missing on the Control
- Vehicle may refuse to drive or charge until the fault is cleared
- Sudden power reduction or shutdown may occur while driving
How to Diagnose and Resolve
- 1 Stop driving immediately and move to a safe location
- 2 Do not attempt to charge the vehicle — active fault: "The Battery Management System (BMS) detected that responses "
- 3 Call Tesla Roadside Assistance (+1-877-798-3752) for a flatbed tow
- 4 At the Service Center, Tesla technicians will inspect the HV battery pack and BMS firmware
Severity Notes
BMS-F089 is classified as a Fault, indicating a critical issue in the Battery Management System system. Do not continue driving and contact Tesla Service immediately.