MyTeslaMate
CP family

CP_a111_inletHeaterUnableToHeat

Not Available

What does the CP_a111_inletHeaterUnableToHeat alert mean?

The charge port (CP) electronic control unit (ECU) detects that the CP inlet heater is not able to heat properly.

What you'll see in your Tesla

  • Not Available

What triggers it

The CP ECU detects that the inlet heater was unable to reach the inlet defrosting temperature.

When it clears

The UI defrost command is set to low.

Potential impact

The CP inlet heater does not work and the CP may remain frozen, requiring defrosting by other means.

Affected models

Cybertruck Model 3 2017-2023 Model 3 2024+ Model S 2021+ Model X 2021+ Model Y Model Y 2025+ Semitruck

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.