BCREAR family
BCREAR_w010_ExtSupplyVoltError
Not Available
What does the BCREAR_w010_ExtSupplyVoltError alert mean?
The electronic control unit (ECU) detects that the supply voltages from 1 or more components are out of range.
What you'll see in your Tesla
- Not Available
What triggers it
The ECU detects the supply voltage is < 7.31V. Specific reason(s) should be available in alert log signal data.
When it clears
The ECU detects that the supply voltage is > 7.31V.
Potential impact
The ECU may be unavailable.
Affected models
Model S 2012-2020
Model X 2015-2020
Track your Tesla's alerts automatically
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.