HVREX family
HVREX_a241_PackVoltageMismatchFault
Unable to charge
What does the HVREX_a241_PackVoltageMismatchFault alert mean?
HVBATT detects that the sum of brick voltages deviates from measured pack voltage.
What you'll see in your Tesla
- Unable to charge
- Service is required
What triggers it
HVBATT detects that the sum of brick voltages deviates from pack voltage by more than 5 percent.
When it clears
HVBATT detects that the sum of brick voltages is within 5 percent of the measured pack voltage.
Potential impact
Inability to charge, drive, or support the low voltage (LV) system
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.