UMC family
UMC_a010_inputOT
Mobile Connector to adapter connection hot
What does the UMC_a010_inputOT alert mean?
UMC input terminals (UMC side of smart adapter connection) exceeded temperature threshold
What you'll see in your Tesla
- Mobile Connector to adapter connection hot
- Let cool - Plug adapter fully into Mobile Connector
What triggers it
UMC input terminal temperature has exceeded 95 C
When it clears
UMC input terminal temperature has fallen below 93 C
Potential impact
UMC will not allow charging until input terminals cool sufficiently
Affected models
Cybertruck
Model 3 2017-2023
Model 3 2024+
Model S 2021+
Model X 2021+
Model Y
Model Y 2025+
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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.