MyTeslaMate
DIRE1L family

DIRE1L_a077_lvSupplyUV

Not Available

What does the DIRE1L_a077_lvSupplyUV alert mean?

The drive interface (DI) or drive inverter (DIx) electronic control unit (ECU) detects a low voltage (LV) battery power supply undervoltage event.

What you'll see in your Tesla

  • Not Available

What triggers it

LV supply voltage to DI (refer to lvSupply) is disconnected or drops below lower voltage threshold

When it clears

LV supply rises back above lower threshold

Potential impact

Drive unit enters unit limp mode (see DI_a126_limpMode)

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.