MyTeslaMate
EPBR family

EPBR_a242_hvOutputLocked

Not Available

What does the EPBR_a242_hvOutputLocked alert mean?

A request to change the HVC or Contactor power state has been denied.

What you'll see in your Tesla

  • Not Available

What triggers it

Electronic Parking Brake Right detects high voltage lockout request timed out after 0.5 seconds

When it clears

Electronic Parking Brake Right unlocks high voltage output

Potential impact

High Voltage control or contactor may be faulted

Affected models

Model 3 2017-2023 Model 3 2024+ Model S 2021+ Model X 2021+ Model Y Model Y 2025+

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.