PCS2REXA family
PCS2REXA_a051_bmsMia
Unable to charge
What does the PCS2REXA_a051_bmsMia alert mean?
The Power Conversion System (PCS) does not receive one or more Controller Area Network (CAN) messages from the Battery Management System (BMS)
What you'll see in your Tesla
- Unable to charge
- Service is required
What triggers it
The PCS does not receive all expected CAN messages from the BMS
When it clears
The PCS receives all expected CAN messages from the BMS
Potential impact
DCDC and DCAC may be limited or unavailable.
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.