PCS2 family
PCS2_a132_microgridDroopDetected
Vehicle charging with off-grid Powerwall
What does the PCS2_a132_microgridDroopDetected alert mean?
The Power Conversion System (PCS2) detects the microgrid frequency droops below its nominal level indicating microgrid is under heavy load
What you'll see in your Tesla
- Vehicle charging with off-grid Powerwall
- Charging rate adjusted to allow power sharing
What triggers it
The PCS2 ECU detects the microgrid frequency droops below its nominal level
When it clears
Microgrid no longer detected
Potential impact
AC charging power will be temporarily limited depending on the droop level to reduce the load on the microgrid
Affected models
Cybertruck
Model 3 2017-2023
Model 3 2024+
Model Y
Model Y 2025+
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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.