MyTeslaMate
HVREX family

HVREX_a054_FcCtrFellOpenLowDriveVoltage

Not Available

What does the HVREX_a054_FcCtrFellOpenLowDriveVoltage alert mean?

FC contactor opened unexpectedly due to insufficient contactor drive voltage.

What you'll see in your Tesla

  • Not Available

What triggers it

Contactor control state exited CLOSED because of insufficient contactor power voltage.

When it clears

Contactor control state is CLOSED.

Potential impact

Vehicle will stop charging.

Affected models

Cybertruck

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.