HVREX family
HVREX_a199_AllTempSensorsBad
Vehicle may not restart
What does the HVREX_a199_AllTempSensorsBad alert mean?
HVBATT cannot measure the temperature on any module in the battery pack.
What you'll see in your Tesla
- Vehicle may not restart
- Service is required
What triggers it
All temperature sensors in the battery pack are reporting faulty measurement readings.
When it clears
HVBATT receives a valid measurement from any temperature sensor in the battery pack.
Potential impact
Inability to charge, drive, or support the low voltage (LV) system.
Affected models
Cybertruck
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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.