PCS2 family
PCS2_a063_chgUnknownGridConfig
Cannot charge - Poor grid power quality possible
What does the PCS2_a063_chgUnknownGridConfig alert mean?
The Power Conversion System (PCS) detects an unknown grid configuration from the external charging equipment
What you'll see in your Tesla
- Cannot charge - Poor grid power quality possible
- Retry / Try other charge location or Supercharging
What triggers it
The PCS detects unknown grid configuration
When it clears
The PCS stops being commanded to AC charge
Potential impact
AC charging functionality may be unavailable
Affected models
Cybertruck
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.