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Tesla CHG_f091

Charging equipment not recognized Try again or try different equipment

Common search variants: CHGf091 · CHG-f091 · CHG f091 · Search ignores case and common separators.

DriveNot yet established by verified evidence.
ChargeUnknown. The alert indicates that the vehicle may not recognize the connected charging equipment; charging status is not otherwise established by the supplied evidence.
ServiceService need is not yet established by verified evidence. Tesla documentation says the alert does not typically indicate a vehicle issue; if the alert persists across different charging equipment, the supplied evidence does not provide a further service instruction.
Confidence95%

Quick answer

CHG_f091 means the charge port cannot determine whether a charge cable is inserted or identify the type of connected cable. Tesla documentation states that this alert is usually related to external charging equipment or its power source and does not typically indicate a vehicle issue.

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1. What does CHG_f091 mean?

CHG_f091 means the charge port cannot determine whether a charge cable is inserted or identify the type of connected cable. Tesla documentation states that this alert is usually related to external charging equipment or its power source and does not typically indicate a vehicle issue.

2. Technical explanation

Tesla identifies CHG_f091 as “Charging equipment not recognized — Try again or try different equipment.” The verified documentation explains that the charge port is unable to detect whether a charge cable is inserted or the type of charge cable connected. The supplied evidence does not establish a component-level vehicle fault.

3. What system is affected?

Charging equipment recognition at the vehicle charge port, including the connected charge cable and external charging equipment/power source.

4. How serious is this code?

Unknown. The supplied diagnostic record does not assign a severity.

5. Symptoms you may notice

  • The vehicle displays CHG_f091: “Charging equipment not recognized — Try again or try different equipment.”
  • The charge port is unable to determine whether a charge cable is inserted or what type of charge cable is connected.

6. Possible causes

  • Tesla documentation states that this alert is usually specific to external charging equipment and power sources.
  • A more specific cause 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?

Unknown. The alert indicates that the vehicle may not recognize the connected charging equipment; charging status is not otherwise established by the supplied evidence.

9. What you can safely do

  • Try charging again.
  • Try different charging equipment.
  • For Mobile Connector or Wall Connector status-light troubleshooting, consult the applicable product Owner’s Manual at Tesla Charging & Adapter Product Guides.

10. Step-by-step troubleshooting

  1. Reconnect or retry the charging attempt.
  2. Try different charging equipment, as stated in the alert.
  3. If using a Tesla Mobile Connector or Wall Connector, use the applicable product Owner’s Manual for status-light troubleshooting.
  4. No high-voltage repair procedure is established by the supplied evidence.

11. When to contact service

Service need is not yet established by verified evidence. Tesla documentation says the alert does not typically indicate a vehicle issue; if the alert persists across different charging equipment, the supplied evidence does not provide a further service instruction.

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 Communication PDF 10253660: Index381, published March 26, 2024: https://static.nhtsa.gov/odi/tsbs/2024/MC-10253660-9999.pdf
  • NHTSA Manufacturer Communication PDF 10250483: ManualC, published December 1, 2023: https://static.nhtsa.gov/odi/tsbs/2023/MC-10250483-9999.pdf
  • NHTSA Manufacturer Communication PDF 10240951: Owner’s Manual, published June 9, 2023: https://static.nhtsa.gov/odi/tsbs/2023/MC-10240951-9999.pdf

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Verified NHTSA-hosted Tesla documentation describes CHG_f091 and directs users of Tesla Mobile Connector or Wall Connector equipment to the applicable product Owner’s Manual at Tesla Charging & Adapter Product Guides. Applicable verified US vehicles: Tesla Model 3 (2017–2023), Model S (2012–2023), and Model X (2016–2023).

19. Frequently asked questions

What does Tesla alert CHG_f091 mean?

It means the charge port cannot detect whether a charge cable is inserted or identify the type of connected charge cable.

Does CHG_f091 usually mean there is a problem with the vehicle?

Tesla documentation says this alert is usually specific to external charging equipment and power sources and does not typically indicate a vehicle issue.

What should I do when CHG_f091 appears?

Try again or use different charging equipment. For Tesla Mobile Connector or Wall Connector status lights, consult the applicable product Owner’s Manual.

Which vehicles are covered by the supplied verified applicability data?

US Tesla Model 3 model years 2017–2023, Model S model years 2012–2023, and Model X model years 2016–2023.

20. Sources & verification

Verified
Show all 24 verified sources
Tesla CHG_f091: Charging equipment not recognized Try again or try… | EV Diagnostics