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Tesla CP_a164

Charge handle still detected after unlatch request Use charge port manual release cable if needed

Common search variants: CPa164 · CP-a164 · CP a164 · Search ignores case and common separators.

DriveUnknown. Whether the vehicle can be driven is not established by the verified evidence.
ChargeUnknown. Whether the vehicle can charge is not established by the verified evidence.
ServiceService need is unknown. Contact Tesla Service if assistance is needed; criteria for service are not established by the verified evidence.
Confidence95%

Quick answer

CP_a164 means the vehicle still detects the charge handle after an unlatch request. The verified owner-manual communication says to use the charge port manual release cable if needed.

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 CP_a164 mean?

CP_a164 means the vehicle still detects the charge handle after an unlatch request. The verified owner-manual communication says to use the charge port manual release cable if needed.

2. Technical explanation

Tesla identifies CP_a164 as: “Charge handle still detected after unlatch request. Use charge port manual release cable if needed.” This establishes a charge-port/charge-handle release condition: an unlatch request occurred, but the vehicle continued to detect the handle. The supplied evidence does not establish a component-level fault cause, diagnostic procedure, or repair.

3. What system is affected?

Charge port and charge handle unlatch/detection function.

4. How serious is this code?

Unknown. Severity is not established by the verified evidence.

5. Symptoms you may notice

  • The vehicle displays CP_a164.
  • The charge handle is still detected after an unlatch request.

6. Possible causes

  • Not yet established by verified evidence.

7. Can I still drive the vehicle?

Unknown. Whether the vehicle can be driven is not established by the verified evidence.

8. Can I charge the vehicle?

Unknown. Whether the vehicle can charge is not established by the verified evidence.

9. What you can safely do

  • Follow the applicable Tesla owner’s manual guidance for the charge port manual release cable if needed.
  • Refer to the vehicle’s Charging Instructions and Charging & Adapter Product Guides.

10. Step-by-step troubleshooting

  1. The verified information identifies use of the charge port manual release cable as needed. No further troubleshooting steps are established by the supplied verified evidence.

11. When to contact service

Service need is unknown. Contact Tesla Service if assistance is needed; criteria for service are not established by the 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 Communication PDF 10253666, published March 27, 2024: https://static.nhtsa.gov/odi/tsbs/2024/MC-10253666-9999.pdf
  • NHTSA Manufacturer Communication PDF 10253669, published March 27, 2024: https://static.nhtsa.gov/odi/tsbs/2024/MC-10253669-9999.pdf
  • NHTSA Manufacturer Communication PDFs 10253661, 10253657, 10253659, 10253655, 10253656, 10252959, 10252956, 10252953, 10252950, 10252952, and 10252948 also contain this owner-manual alert information.

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Verified NHTSA-hosted Tesla manufacturer communications describe this alert and direct users to Tesla Charging Instructions and Charging & Adapter Product Guides. Applicability in the supplied evidence: US Tesla Model 3 (2017–2024), Model S (2021–2024), Model X (2021–2024), and Model Y (2020–2024).

19. Frequently asked questions

What does Tesla alert CP_a164 mean?

It means the charge handle is still detected after an unlatch request.

What does the verified guidance say to do?

Use the charge port manual release cable if needed, following the applicable owner’s manual guidance.

Is it safe to drive or charge?

Not yet established by verified evidence.

Does CP_a164 identify a failed part?

No component-level cause is established by the supplied verified evidence.

20. Sources & verification

Accepted ResearchVerified
Show all 13 verified sources
Tesla CP_a164: Charge handle still detected after unlatch request Use… | EV Diagnostics