PCS2 family
PCS2_a027_AmbientTempTooHigh
Not Available
What does the PCS2_a027_AmbientTempTooHigh alert mean?
The Power Convertsion System (PCS) ambient temperature is too high
What you'll see in your Tesla
- Not Available
What triggers it
Ambient temperature exceeds the allowed temperature threshold
When it clears
Ambient temperature falls below the acceptable threshold
Potential impact
DCDC and AC Charging may be limited or unavailable.
Affected models
Model 3 2017-2023
Model 3 2024+
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.