VCRIGHT family
VCRIGHT_a278_hvacPtcHeatingUnavailable
Cabin heating currently unavailable
What does the VCRIGHT_a278_hvacPtcHeatingUnavailable alert mean?
Cabin heating is unavailable. Check context data for this alert and/or VCRIGHT_a262 to determine exact issue
What you'll see in your Tesla
- Cabin heating currently unavailable
- Not Available
What triggers it
PTC heater is not reporting on CAN, or is receiving low voltage from the HV battery
When it clears
PTC heater is on CAN, and is receiving the correct voltage from the HV battery
Potential impact
Cabin heating will not function.
Affected models
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
Model Y 2025+
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