HVREX family
HVREX_a243_StandbySupplyUnavailable
Not Available
What does the HVREX_a243_StandbySupplyUnavailable alert mean?
The standby supply is unable to activate because no eligible power sources are available.
What you'll see in your Tesla
- Not Available
What triggers it
The standby supply output is requested but there are no subpacks available for use.
When it clears
The standby supply output is not requested or there is an available subpack for flyback power.
Potential impact
This alert is primarily informational and is used for logging purposes. No expected impact on vehicle functionality.
Affected models
Cybertruck
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.