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Nissan P18A5

This DTC can be set during manufacture and will not reoccur once clea

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceContact a Nissan dealer or qualified Nissan EV service provider if P18A5 is current, will not erase, or recurs after clearing. Recurrence criteria beyond the bulletin statement are not established by the supplied evidence.
Confidence95%

Quick answer

For applicable 2013–2016 Nissan Leaf vehicles in the US, Nissan bulletin NTB15-100 states that DTC P18A5 may be set during manufacture and should not recur once cleared.

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 P18A5 mean?

For applicable 2013–2016 Nissan Leaf vehicles in the US, Nissan bulletin NTB15-100 states that DTC P18A5 may be set during manufacture and should not recur once cleared.

2. Technical explanation

Verified evidence identifies P18A5 as “AUTO P CANCELLATION.” The cited Nissan manufacturer communication says that, when P18A5 is stored as CURRENT and will not erase, the DTC can have been set during manufacture and will not recur once cleared. The supplied evidence truncates the final wording and does not establish the complete Nissan diagnostic or clearing procedure.

3. What system is affected?

Not yet established by verified evidence.

4. How serious is this code?

Unknown. The supplied evidence does not assign a severity level.

5. Symptoms you may notice

Not yet established by verified evidence.

6. Possible causes

  • Nissan bulletin NTB15-100 states that P18A5 can be set during manufacture.

7. Can I still drive the vehicle?

Not yet established by verified evidence.

8. Can I charge the vehicle?

Not yet established by verified evidence.

9. What you can safely do

  • Have the vehicle evaluated using the applicable Nissan service information if P18A5 remains current or cannot be erased.
  • Do not assume the code reflects an active fault solely from the supplied evidence; Nissan’s bulletin indicates it may have been set during manufacture.

10. Step-by-step troubleshooting

  1. Verified bulletin condition: P18A5 (“AUTO P CANCELLATION”) is stored as CURRENT and will not erase.
  2. The supplied evidence indicates the DTC may have been set during manufacture and should not recur once cleared.
  3. The complete clearing and confirmation process is not included in the supplied evidence.

11. When to contact service

Contact a Nissan dealer or qualified Nissan EV service provider if P18A5 is current, will not erase, or recurs after clearing. Recurrence criteria beyond the bulletin statement are not established by the supplied evidence.

12. What the service center may check

  • Confirm whether DTC P18A5 is stored as CURRENT and whether it can be erased.
  • Follow the applicable Nissan procedure in NTB15-100 or Nissan service information. The detailed procedure is not included in the supplied evidence.

13. Possible repair or resolution

  • The verified communication indicates that a manufacturing-set P18A5 should not reoccur once cleared.
  • No component replacement, software update, or other repair is established by the supplied evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • Nissan NTB15-100 / NHTSA Manufacturer Communication 10192682, published November 16, 2015. It addresses P18A5 (“AUTO P CANCELLATION”) stored as CURRENT and not erasable, noting that the DTC can be set during manufacture and should not recur once cleared.

16. Recall information

No recall relationship is established by verified evidence.

17. Official manufacturer information

Official source: NHTSA Manufacturer Communication 10192682, Nissan bulletin NTB15-100: https://static.nhtsa.gov/odi/ffdd/tsbs/TSBS_RECEIVED_2015-2019.zip#nhtsa_id=10192682

19. Frequently asked questions

What does Nissan P18A5 mean?

The supplied official bulletin identifies P18A5 as “AUTO P CANCELLATION.”

Can P18A5 be caused by vehicle manufacture?

Yes. Nissan bulletin NTB15-100 states that this DTC can be set during manufacture.

Will P18A5 return after it is cleared?

Nissan bulletin NTB15-100 states that it will not reoccur once cleared. The supplied evidence does not include the complete clearing procedure.

Which vehicles are covered by the supplied evidence?

The supplied applicability data covers US-market 2013–2016 Nissan Leaf vehicles.

20. Sources & verification

Verified
Nissan P18A5: This DTC can be set during manufacture and will not… | EV Diagnostics