HVREX family
HVREX_a057_StackVoltageMia
Unable to charge
What does the HVREX_a057_StackVoltageMia alert mean?
Indicates valid data is missing for one or more stack voltages
What you'll see in your Tesla
- Unable to charge
- Service is required
What triggers it
One or more stack voltages are continuously detected as invalid
When it clears
All stack voltages continuously have valid data
Potential impact
Stack voltage data is likely being substituted to replace invalid readings
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.