BMS family
BMS_f089_SW_THC_MIA
Not Available
What does the BMS_f089_SW_THC_MIA alert mean?
The battery management system (BMS) reported that the thermal controller (THC) was missing (MIA) on controller area network (CAN).
What you'll see in your Tesla
- Not Available
What triggers it
The BMS has not received the full set of expected messages from the THC for ten times the message period.
When it clears
The BMS receives the expected messages from the THC.
Potential impact
Inability to charge, drive, or support the low voltage (LV) system
Affected models
Model S 2012-2020
Model X 2015-2020
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Alerts like this reach MyTeslaMate through your car's Tesla telemetry API. MyTeslaMate logs every alert your Tesla reports and turns it into readable history and real-time notifications — hosted TeslaMate with no server to run.