MyTeslaMate
HVREX family

HVREX_a021_FcCtrOpenBlockedPyroDeployed

Not Available

What does the HVREX_a021_FcCtrOpenBlockedPyroDeployed alert mean?

FC contactors were blocked from opening due to high current. Pyro deployed instead.

What you'll see in your Tesla

  • Not Available

What triggers it

Charge current is above threshold while trying to open FC contactors.

When it clears

The contactor control state is OPEN or CLOSING.

Potential impact

The positive and negative pyro fuses will be deployed.

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.