MyTeslaMate
APP family

APP_w159_vcleftMiaVehBus

Not Available

What does the APP_w159_vcleftMiaVehBus alert mean?

One or more of the messages that the Autopilot electronic control unit (ECU) receives periodically from the left vehicle controller (VCLEFT) is not received over the controller area network (CAN), resulting in limited Autopilot functionality.

What you'll see in your Tesla

  • Not Available

What triggers it

One or more of the expected left vehicle controller (VCLEFT) messages is not received over the controller area network (CAN).

When it clears

The Autopilot electronic control unit (ECU) starts receiving left vehicle controller (VCLEFT) messages again.

Potential impact

Autopilot features may not be available, or may not function as expected.

Affected models

Cybertruck Model 3 2017-2023 Model 3 2024+ Model S 2021+ Model X 2021+ Model Y Model Y 2025+ Semitruck

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.