MyTeslaMate
DIF family

DIF_a155_vcfrontMIA

Not Available

What does the DIF_a155_vcfrontMIA alert mean?

The drive interface (DI) electronic control unit (ECU) detects that the front vehicle controller (VCFRONT) controller area network (CAN) node is missing (MIA).

What you'll see in your Tesla

  • Not Available

What triggers it

The DI ECU is not receiving the expected CAN communication from the VCFRONT, and considers it irrational or MIA.

When it clears

The DI ECU receives the required CAN messages from the VCFRONT.

Potential impact

The DI ECU is unable to monitor the state of the VCFRONT.

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.