MyTeslaMate
GTW family

GTW_w046_mcuMia

Not Available

What does the GTW_w046_mcuMia alert mean?

The vehicle gateway (GTW) has not received an expected state message from the Media Control Unit (MCU) via the Ethernet Bus (ETH) within the required time period.

What you'll see in your Tesla

  • Not Available

What triggers it

The GTW does not receive the state ETH message from MCU ECU at the expected frequency.

When it clears

The GTW receives the state ETH message from MCU ECU as expected.

Potential impact

Gateway unable to monitor MCU state

Affected models

Model S 2012-2020 Model X 2015-2020

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.