MyTeslaMate
HVPACK3 family

HVPACK3_a021_HvSenseAsicFault

Not Available

What does the HVPACK3_a021_HvSenseAsicFault alert mean?

The HvSense measurement asic has a SPI communication fault or other internal fault.

What you'll see in your Tesla

  • Not Available

What triggers it

Fault condition was set during SPI communications

When it clears

Normal communications restored (after debounce period)

Potential impact

HvSense readings are stale

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.