MCU family
MCU_w038_modemMIA
Not Available
What does the MCU_w038_modemMIA alert mean?
One or more of the messages the Media Control Unit (MCU) receives periodically from the cellular modem is not received, indicating the cellular modem 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 cellular modem is not received.
When it clears
The MCU starts receiving the expected messages from the cellular modem.
Potential impact
The vehicle may intermittently or persistently loose cellular connectivity.
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.