HVBATT family
HVBATT_a222_AcjbHwConfigMismatch
Unable to charge
What does the HVBATT_a222_AcjbHwConfigMismatch alert mean?
The battery management system (BMS) detects that the AC junction box (ACJB) config block does not match the ACJB connected to the BMS.
What you'll see in your Tesla
- Unable to charge
- Service is required
What triggers it
The ACJB config block and the connected ACJB do not match up.
When it clears
The ACJB config block and the connected ACJB match up.
Potential impact
This alert may indicate either an incorrect config block, or that the installed ACJB is incompatible with the car configuration.
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.