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Tesla UMC_a007

Mobile Connector control box temperature high Let Mobile Connector cool to resume charging

Common search variants: UMCa007 · UMC-a007 · UMC a007 · Search ignores case and common separators.

DriveNot yet established by verified evidence.
ChargeCharging has been interrupted. The alert instructs the user to let the Mobile Connector cool to resume charging.
ServiceNot yet established by verified evidence.
Confidence95%

Quick answer

UMC_a007 means charging was interrupted because the Tesla Mobile Connector detected a high temperature inside its control-box housing. Let the Mobile Connector cool before charging resumes.

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_a007 mean?

UMC_a007 means charging was interrupted because the Tesla Mobile Connector detected a high temperature inside its control-box housing. Let the Mobile Connector cool before charging resumes.

2. Technical explanation

Verified Tesla owner-manual material filed with NHTSA states that UMC_a007 is a Mobile Connector control-box temperature-high alert. The Mobile Connector detected high temperature inside its control-box housing and interrupted charging.

3. What system is affected?

Tesla Mobile Connector, specifically its control-box housing during charging.

4. How serious is this code?

The database severity is unknown. Charging interruption is verified; the evidence does not establish a broader vehicle-safety severity classification.

5. Symptoms you may notice

  • The UMC_a007 alert is displayed.
  • Charging is interrupted.
  • A high temperature is detected inside the Mobile Connector control-box housing.

6. Possible causes

  • The Mobile Connector control-box housing has detected a high internal temperature.
  • The verified guidance specifically directs checking whether the Mobile Connector is covered and whether a heat source is nearby. Further causes are 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. The alert instructs the user to let the Mobile Connector cool to resume charging.

9. What you can safely do

  • Let the Mobile Connector cool.
  • Make sure the Mobile Connector is not covered by anything.
  • Make sure there is no heat source nearby.
  • For Mobile Connector status-light and charging-issue troubleshooting, refer to the product owner's manual.

10. Step-by-step troubleshooting

  1. Confirm that nothing is covering the Mobile Connector.
  2. Confirm that no heat source is nearby.
  3. Allow the Mobile Connector to cool before attempting to resume charging.
  4. Consult the applicable Tesla Mobile Connector/product owner's manual for 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

  • Not yet established by verified evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • NHTSA manufacturer communications containing Tesla owner-manual guidance document UMC_a007, including MC-10250484-9999 (published 2023-12-01), describe the alert and the instruction to ensure the Mobile Connector is uncovered and away from nearby heat sources.
  • Additional NHTSA-filed Tesla owner-manual communications also contain this alert guidance, including MC-10253666-9999, MC-10253669-9999, MC-10253661-9999, and MC-10253657-9999 (published March 2024).

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Official NHTSA-hosted Tesla manufacturer communication: https://static.nhtsa.gov/odi/tsbs/2023/MC-10250484-9999.pdf

19. Frequently asked questions

What does Tesla UMC_a007 mean?

It means the Mobile Connector detected a high temperature inside its control-box housing, and charging was interrupted.

What should I do when UMC_a007 appears?

Let the Mobile Connector cool, make sure it is not covered by anything, and make sure no heat source is nearby.

Will charging resume after UMC_a007?

The alert message states to let the Mobile Connector cool to resume charging. The evidence does not establish a specific cooling time or guarantee of successful resumption.

Can I drive with UMC_a007?

Not yet established by verified evidence.

20. Sources & verification

Accepted ResearchVerified
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Tesla UMC_a007: Mobile Connector control box temperature high Let… | EV Diagnostics