FC family
FC_a185_CA_vehReadyDeasserted
Unable to charge with CHAdeMO adapter
What does the FC_a185_CA_vehReadyDeasserted alert mean?
The vehicle is unable to CHAdeMO DC fast charge (FC) because the vehicle is no longer reporting that it is ready to charge.
What you'll see in your Tesla
- Unable to charge with CHAdeMO adapter
- Unplug adapter from station and retry
What triggers it
The vehicle reports that it is not ready to DC fast charge.
When it clears
The vehicle reports that it is ready to charge, or that the charge cable was 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+
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.