MyTeslaMate
HVLINK family

HVLINK_a004_HvInletBlockingHvUp

Unable to drive

What does the HVLINK_a004_HvInletBlockingHvUp alert mean?

HV Up is blocked by HVLINK because the DC Link is potentially exposed at the HV Inlet.

What you'll see in your Tesla

  • Unable to drive
  • PULL OVER SAFELY

What triggers it

HVLINK is not confident that the DC Link is not exposed at the HV Inlet and BMS requests that the DC Link be energized

When it clears

(GTW reports that CP firmware is not mismatching AND CP_hvInletExposed is false) or the FC contactors open or BMS no longer requests that the DC Link be energized

Potential impact

DC Link may fail to energize

Affected models

Semitruck

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.