FC family
FC_a161_CA_vehTempHiFoldBk
Charging adapter temperature high
What does the FC_a161_CA_vehTempHiFoldBk alert mean?
Charging speed is reduced because the CHADeMO adapter reports a temperature above the alert threshold.
What you'll see in your Tesla
- Charging adapter temperature high
- Maximum charge rate reduced
What triggers it
The FCU ECU detects that the vehicle charge port temperature is above the alert limit.
When it clears
The fast charge (FC) electronic control unit (ECU) detects that the charge port temperature is within expected bounds, 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+
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.