MyTeslaMate
HVLINK family

HVLINK_a023_MvStarcHvilUnknown

High voltage system error detected

What does the HVLINK_a023_MvStarcHvilUnknown alert mean?

The Stationary Resonant Convertor (STARC) High Voltage Interlock Loop (HVIL) is reporting as unknown, breaking the overall High Voltage DC Link Controller (HVLINK) HVIL.

What you'll see in your Tesla

  • High voltage system error detected
  • Vehicle may not restart - Service is required

What triggers it

STARC HVIL connection is reported as unknown.

When it clears

The STARC HVIL connection is closed or open.

Potential impact

DC Link may discharge or fail to energize.

Affected models

Semitruck

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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.