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Tesla UMC_a010

Mobile Connector to adapter connection hot Let cool - Plug adapter fully into Mobile Connector

Common search variants: UMCa010 · UMC-a010 · UMC a010 · Search ignores case and common separators.

DriveNot yet established by verified evidence.
ChargeCharging has been interrupted while this alert is active. After the connection has cooled and the wall-plug adapter is fully connected to the Mobile Connector, whether charging resumes is not yet established by verified evidence.
ServiceNot yet established by verified evidence.
Confidence95%

Quick answer

UMC_a010 means charging was interrupted because the Tesla Mobile Connector detected high temperature at the connection between its wall-plug adapter and control box. Let the connection cool, then ensure the wall-plug adapter is fully connected to the Mobile Connector.

This page separates verified manufacturer/regulator evidence from supporting material. Unsupported causes, repairs or safety conclusions are not guessed.

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1. What does UMC_a010 mean?

UMC_a010 means charging was interrupted because the Tesla Mobile Connector detected high temperature at the connection between its wall-plug adapter and control box. Let the connection cool, then ensure the wall-plug adapter is fully connected to the Mobile Connector.

2. Technical explanation

Verified Tesla owner-manual material filed with NHTSA states that this alert is triggered by a high temperature at the connection between the Mobile Connector’s wall-plug adapter and control box. The alert concerns the Mobile Connector/adapter connection and reports that charging has been interrupted.

3. What system is affected?

Tesla Mobile Connector wall-plug adapter to control-box connection.

4. How serious is this code?

The database severity is unknown. Verified evidence establishes that charging has been interrupted due to a detected high temperature.

5. Symptoms you may notice

  • UMC_a010 alert is displayed.
  • Charging has been interrupted.
  • The Mobile Connector has detected high temperature at the wall-plug adapter to control-box connection.

6. Possible causes

  • High temperature detected at the connection between the wall-plug adapter and the Mobile Connector control box.
  • Whether any underlying cause beyond the detected hot connection is present is not yet established by verified evidence.

7. Can I still drive the vehicle?

Not yet established by verified evidence.

8. Can I charge the vehicle?

Charging has been interrupted while this alert is active. After the connection has cooled and the wall-plug adapter is fully connected to the Mobile Connector, whether charging resumes is not yet established by verified evidence.

9. What you can safely do

  • Let the Mobile Connector-to-adapter connection cool.
  • Make sure the wall-plug adapter is fully connected to the Mobile Connector.
  • Refer to the applicable product owner’s manual for Mobile Connector status-light and charging-issue troubleshooting.

10. Step-by-step troubleshooting

  1. Allow the detected hot connection to cool.
  2. Confirm that the wall-plug adapter is fully connected to the Mobile Connector.
  3. Use the applicable Tesla owner’s manual for further Mobile Connector status-light and charging troubleshooting.

11. When to contact service

Not yet established by verified evidence.

12. What the service center may check

  • Not yet established by verified evidence.

13. Possible repair or resolution

  • Let the connection cool and fully connect the wall-plug adapter to the Mobile Connector. Further repair resolution is not yet established by verified evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • NHTSA manufacturer communications containing Tesla owner-manual guidance document UMC_a010, including NHTSA communication 10250484 (published December 1, 2023): https://static.nhtsa.gov/odi/tsbs/2023/MC-10250484-9999.pdf
  • NHTSA manufacturer communication 10253666 (published March 27, 2024): https://static.nhtsa.gov/odi/tsbs/2024/MC-10253666-9999.pdf

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Tesla owner-manual material submitted to NHTSA describes UMC_a010 as: “Mobile Connector to adapter connection hot Let cool - Plug adapter fully into Mobile Connector.” Official NHTSA-hosted source: https://static.nhtsa.gov/odi/tsbs/2023/MC-10250484-9999.pdf

19. Frequently asked questions

What does Tesla UMC_a010 mean?

It means charging was interrupted because the Mobile Connector detected high temperature at the connection between the wall-plug adapter and the control box.

What should I do for UMC_a010?

Let the connection cool and make sure the wall-plug adapter is fully connected to the Mobile Connector.

Does UMC_a010 identify a vehicle high-voltage battery fault?

Not yet established by verified evidence. The verified alert text identifies the Mobile Connector wall-plug adapter to control-box connection.

Which vehicles are covered by the supplied verified applicability data?

Tesla US Model 3 (2013–2024), Model S (2012–2024), Model X (2016–2024), and Model Y (2020–2024), subject to overlapping database applicability entries.

20. Sources & verification

Accepted ResearchVerified
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