MyTeslaMate
STITCH2 family

STITCH2_a009_FW_HV_Bus_Top_OV

Not Available

What does the STITCH2_a009_FW_HV_Bus_Top_OV alert mean?

A fast firmware trip has been detected due to High Voltage (HV) readings exceeding the expected bus top half voltage limit.

What you'll see in your Tesla

  • Not Available

What triggers it

Single HV top half bus voltage exceeds the expected threshold.

When it clears

HV top half bus voltage drops below the expected threshold.

Potential impact

STITCH will halt operation, low voltage will not be supported.

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.