MyTeslaMate
APP family

APP_w034_sccmMia

Not Available

What does the APP_w034_sccmMia alert mean?

One or more of the messages the Autopilot electronic control unit (ECU) receives periodically from the Steering Column Control Module (SCCM) ECU is not received, indicating the SCCM ECU may be unavailable (MIA).

What you'll see in your Tesla

  • Not Available

What triggers it

One or more of the expected messages from the SCCM ECU is not received.

When it clears

The Autopilot ECU starts receiving expected messages from the SCCM.

Potential impact

Autopilot features that require messages from the SCCM, such as Autosteer and Autopark, may be limited or unavailable.

Affected models

Cybertruck Model 3 2017-2023 Model 3 2024+ Model S 2012-2020 Model S 2021+ Model X 2015-2020 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.