MyTeslaMate
PCS family

PCS_a021_hvpMia

Not Available

What does the PCS_a021_hvpMia alert mean?

PCS does not receive CAN messages from HVP

What you'll see in your Tesla

  • Not Available

What triggers it

Charger does not receive all expected CAN messages from high voltage processor

When it clears

PCS receives all expected CAN messages from high voltage processor

Potential impact

Inability to AC charge, inability to precharge HV bus, inability to drive

Affected models

Model 3 2017-2023 Model 3 2024+ Model S 2021+ Model X 2021+ 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.