PCS2REXA family
PCS2REXA_a049_dcacUnderVoltage
Not Available
What does the PCS2REXA_a049_dcacUnderVoltage alert mean?
The DCAC high voltage (HV) measurement goes below the allowed voltage threshold
What you'll see in your Tesla
- Not Available
What triggers it
The DCAC HV voltage goes below the allowed voltage threshold
When it clears
The DCAC system retries
Potential impact
DCAC functionality may be limited or paused
Affected models
Cybertruck
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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.