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Tesla UMC_w002

Unable to charge - Mobile Connector GFCI tripped Unplug charge handle from charge port and retry

Common search variants: UMCw002 · UMC-w002 · UMC w002 · Search ignores case and common separators.

DriveNot yet established by verified evidence.
ChargeThe vehicle cannot charge using the Mobile Connector while this alert is present. Whether charging by other methods is available is not yet established by verified evidence.
ServiceNot yet established by verified evidence.
Confidence95%

Quick answer

Tesla alert UMC_w002 means the vehicle cannot charge because the ground-fault circuit interrupter (GFCI) in the Mobile Connector has tripped. Unplug the charge handle from the vehicle charge port and retry.

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1. What does UMC_w002 mean?

Tesla alert UMC_w002 means the vehicle cannot charge because the ground-fault circuit interrupter (GFCI) in the Mobile Connector has tripped. Unplug the charge handle from the vehicle charge port and retry.

2. Technical explanation

Verified Tesla owner-documentation evidence describes the Mobile Connector GFCI as a protective feature, like a GFCI in a wall outlet, designed to stop electricity flow when there is a problem. When it trips, Mobile Connector charging is unavailable and UMC_w002 is displayed.

3. What system is affected?

Tesla Mobile Connector ground-fault circuit interrupter (GFCI) and Mobile Connector charging.

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

  • The UMC_w002 alert is displayed.
  • The vehicle cannot charge using the Mobile Connector.
  • The Mobile Connector GFCI has tripped.

6. Possible causes

  • The verified evidence establishes that the Mobile Connector GFCI has tripped. It does not establish the underlying reason for the trip.

7. Can I still drive the vehicle?

Not yet established by verified evidence.

8. Can I charge the vehicle?

The vehicle cannot charge using the Mobile Connector while this alert is present. Whether charging by other methods is available is not yet established by verified evidence.

9. What you can safely do

  • Unplug the charge handle from the vehicle charge port and retry charging.
  • For troubleshooting Mobile Connector status lights and charging issues, refer to the product owner's manual.

10. Step-by-step troubleshooting

  1. Unplug the Mobile Connector charge handle from the vehicle charge port.
  2. Retry charging.
  3. Refer to the Mobile Connector product owner's manual for status-light and charging-issue 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

  • The verified evidence specifies unplugging the charge handle from the charge port and retrying. Further repair or resolution is not yet established by verified evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • NHTSA Manufacturer Communication PDF 10250483: Tesla owner documentation, published December 1, 2023. https://static.nhtsa.gov/odi/tsbs/2023/MC-10250483-9999.pdf
  • NHTSA Manufacturer Communication PDF 10253660: Tesla owner documentation, published March 26, 2024. https://static.nhtsa.gov/odi/tsbs/2024/MC-10253660-9999.pdf

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Official NHTSA-hosted Tesla owner-documentation records identify this alert for US Tesla Model 3 (2017–2023), Model S (2012–2023), and Model X (2016–2023). Source: https://static.nhtsa.gov/odi/tsbs/2023/MC-10250483-9999.pdf

19. Frequently asked questions

What does Tesla UMC_w002 mean?

It means the vehicle cannot charge because the GFCI in the Mobile Connector has tripped.

What should I do when UMC_w002 appears?

Unplug the charge handle from the vehicle charge port and retry charging.

Why does the Mobile Connector have a GFCI?

Tesla documentation states that it is a protective feature, like a wall-outlet GFCI, designed to stop electricity flow when there is a problem.

Does UMC_w002 mean the vehicle cannot be driven?

Not yet established by verified evidence.

20. Sources & verification

Verified
Show all 24 verified sources
Tesla UMC_w002: Unable to charge - Mobile Connector GFCI tripped… | EV Diagnostics