PCS2 family
PCS2_a156_vcfrontMia
Not Available
What does the PCS2_a156_vcfrontMia alert mean?
The Power Conversion System (PCS2) did not receive one or more Controller Area Network (CAN) messages from the Front Vehicle Controller (VCFRONT).
What you'll see in your Tesla
- Not Available
What triggers it
The PCS2 does not receive one or more expected CAN messages from VCFRONT.
When it clears
The PCS2 receives all expected CAN messages from VCFRONT.
Potential impact
The PCS2 may limit DCDC functionality to prevent overheating of power electronics components.
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.