FC family
FC_a265_GB_bmsIncompatible
Charging adapter fault
What does the FC_a265_GB_bmsIncompatible alert mean?
The vehicle is unable to begin GB (China) DC fast charging because the battery management system (BMS) reports an incompatible protocol version.
What you'll see in your Tesla
- Charging adapter fault
- Unplug and retry
What triggers it
The FC ECU detects that the BMS protocol version is not compatible with the GB EVSE.
When it clears
The FC ECU detects that the BMS protocol version is compatible with the GB EVSE, or the charge cable is disconnected.
Potential impact
DC fast charging is unavailable.
Affected models
Cybertruck
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
Model Y 2025+
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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.