CP family
CP_a143_unsupportedChargeAdapter
Charging adapter has electric arc flash hazard
What does the CP_a143_unsupportedChargeAdapter alert mean?
The charge port detected an unsupported charging adapter
What you'll see in your Tesla
- Charging adapter has electric arc flash hazard
- Use different charging equipment
What triggers it
An unsupported charging adapter was detected
When it clears
The charge cable and/or adapter is removed
Potential impact
Charging will not begin with the unsupported adapter
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.