FC family
FC_a163_CA_pcbTempHiFoldBk
Charging adapter temperature high
What does the FC_a163_CA_pcbTempHiFoldBk alert mean?
Charging speed is reduced because the printed circuit board (PCB) 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 PCB reports a temperature above the alert threshold.
When it clears
The PCB reports a temperature within expected bounds.
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.