MyTeslaMate
APS family

APS_w144_vcleftMiaPartyBus

Not Available

What does the APS_w144_vcleftMiaPartyBus alert mean?

Autopilot Processor Secondary (APS) has not received one or more Controller Area Network (CAN) messages from left vehicle controller (VCLEFT) on Party Bus.

What you'll see in your Tesla

  • Not Available

What triggers it

APS does not receive one or more CAN messages from VCLEFT on Party Bus.

When it clears

APS starts receiving all CAN messages from VCLEFT.

Potential impact

Autopilot features will be disabled since APS forwards these messages to radar.

Affected models

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

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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.