EV Diagnostics
Verified EV diagnostic knowledge page

Tesla CHG_u013

Charging equipment communication lost Check power source and charging equipment

Common search variants: CHGu013 · CHG-u013 · CHG u013 · Search ignores case and common separators.

DriveNot yet established by verified evidence.
ChargeCharging was stopped when the alert occurred. Whether charging can resume is not yet established by verified evidence.
ServiceTesla documentation recommends scheduling service if the alert persists when attempting to charge at multiple locations and with different charging equipment.
Confidence95%

Quick answer

CHG_u013 means charging stopped because communication between the Tesla and the external charging equipment was interrupted. Verified Tesla documentation says this alert is usually specific to external charging equipment and power sources and does not typically indicate a vehicle issue.

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

Video guides

Watch Videos

Relevant videos play here without leaving this diagnostic page.

No sufficiently relevant embeddable video has been accepted for this diagnostic yet.

Videos are supporting material and never override OEM or regulator evidence.

1. What does CHG_u013 mean?

CHG_u013 means charging stopped because communication between the Tesla and the external charging equipment was interrupted. Verified Tesla documentation says this alert is usually specific to external charging equipment and power sources and does not typically indicate a vehicle issue.

2. Technical explanation

The alert text is: “Charging equipment communication lost — Check power source and charging equipment.” The verified documentation states that charging stopped because communication between the vehicle and external charging equipment was interrupted.

3. What system is affected?

External charging equipment and its power source; communication between that equipment and the vehicle.

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

  • Charging stopped.
  • The vehicle displays CHG_u013: “Charging equipment communication lost — Check power source and charging equipment.”

6. Possible causes

  • Interrupted communication between the vehicle and external charging equipment.
  • The alert is usually specific to external charging equipment and power sources. Specific component-level 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 was stopped when the alert occurred. Whether charging can resume is not yet established by verified evidence.

9. What you can safely do

  • Check the power source and charging equipment.
  • For Mobile Connector or Wall Connector status-light troubleshooting, refer to that product’s Owner’s Manual at Tesla Charging & Adapter Product Guides.
  • If the alert persists when attempting to charge at multiple locations and with different charging equipment, schedule service.

10. Step-by-step troubleshooting

  1. Attempt charging at multiple locations and with different charging equipment to determine whether the alert persists.
  2. Consult the applicable Mobile Connector or Wall Connector Owner’s Manual for status-light troubleshooting.

11. When to contact service

Tesla documentation recommends scheduling service if the alert persists when attempting to charge at multiple locations and with different charging equipment.

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

  • Official NHTSA-hosted Tesla manufacturer communications document CHG_u013 and its owner guidance, including NHTSA Manufacturer Communication PDF 10250483 (published December 1, 2023): https://static.nhtsa.gov/odi/tsbs/2023/MC-10250483-9999.pdf
  • Additional official NHTSA-hosted Tesla documentation includes PDF 10253660 (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

Verified applicability is Tesla vehicles in the US: Model 3 model years 2017–2023; Model S model years 2012–2023; and Model X model years 2016–2023. Source: NHTSA-hosted Tesla manufacturer communications.

19. Frequently asked questions

What does Tesla alert CHG_u013 mean?

It means charging stopped because communication between the vehicle and the external charging equipment was interrupted.

Does CHG_u013 usually mean the Tesla itself has a fault?

Verified Tesla documentation says the alert is usually specific to external charging equipment and power sources and does not typically indicate an issue with the vehicle.

When should service be scheduled?

Schedule service if the alert persists while attempting to charge at multiple locations and with different charging equipment.

20. Sources & verification

Verified
Show all 24 verified sources
Tesla CHG_u013: Charging equipment communication lost Check power… | EV Diagnostics