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Acura U3577

If all of these DTCs are NOT SET as current or history this bu

DriveUnknown. The supplied verified evidence does not determine whether the vehicle is safe to drive.
ChargeUnknown. The supplied verified evidence does not determine whether the vehicle is safe to charge.
ServiceContact an authorized Acura service provider for diagnosis and to determine whether bulletin B25-025 applies to the vehicle.
Confidence95%

Quick answer

U3577 is documented by Acura in a service bulletin only as part of a required group of DTCs for a specific inspection/repair procedure. The supplied evidence does not establish a complete code definition because the available title and meaning are truncated.

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 U3577 mean?

U3577 is documented by Acura in a service bulletin only as part of a required group of DTCs for a specific inspection/repair procedure. The supplied evidence does not establish a complete code definition because the available title and meaning are truncated.

2. Technical explanation

For a 2024 Acura ZDX in the United States, NHTSA-hosted Acura bulletin B25-025 instructs technicians to verify that all listed DTCs are set as current or history before proceeding with the bulletin’s inspection and repair procedure. U3577 is one of those required DTCs. The supplied evidence does not establish the affected component, fault mechanism, or exact repair.

3. What system is affected?

Not yet established by verified evidence.

4. How serious is this code?

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

5. Symptoms you may notice

Not yet established by verified evidence.

6. Possible causes

  • Not yet established by verified evidence.

7. Can I still drive the vehicle?

Unknown. The supplied verified evidence does not determine whether the vehicle is safe to drive.

8. Can I charge the vehicle?

Unknown. The supplied verified evidence does not determine whether the vehicle is safe to charge.

9. What you can safely do

  • Have a qualified Acura service provider check for current and history DTCs if bulletin B25-025 may apply.
  • Do not assume bulletin applicability from U3577 alone; the bulletin requires the full listed DTC group.

10. Step-by-step troubleshooting

  1. For the bulletin procedure, verify whether all of the following DTCs are set as current or history: P2C8A, P2C8B, U3577, U3578, U3579, U357A, U357B, U357C, U357D, U357E, U357F, U3580, and U35AF.
  2. If all of those DTCs are not set as current or history, the supplied bulletin excerpt indicates that the bulletin does not apply. Further wording is truncated in the verified evidence.

11. When to contact service

Contact an authorized Acura service provider for diagnosis and to determine whether bulletin B25-025 applies to the vehicle.

12. What the service center may check

  • Check current and history DTCs.
  • Confirm whether every DTC required by Acura bulletin B25-025 is present: P2C8A, P2C8B, U3577, U3578, U3579, U357A, U357B, U357C, U357D, U357E, U357F, U3580, and U35AF.

13. Possible repair or resolution

  • Not yet established by verified evidence. The supplied bulletin excerpt refers to inspection and repair procedures, but does not provide the procedure or repair details.

14. Affected vehicles

15. Related TSBs / service bulletins

  • Acura bulletin B25-025, published May 23, 2025, is available through NHTSA as Manufacturer Communication PDF 11019256: https://static.nhtsa.gov/odi/tsbs/2025/MC-11019256-0001.pdf
  • The bulletin evidence applies to a 2024 Acura ZDX in the United States and requires all listed DTCs to be set as current or history before its procedure is used.

16. Recall information

No recall relationship is established by verified evidence.

17. Official manufacturer information

Verified official source: NHTSA Manufacturer Communication PDF 11019256, Acura bulletin B25-025, published May 23, 2025: https://static.nhtsa.gov/odi/tsbs/2025/MC-11019256-0001.pdf

19. Frequently asked questions

Does U3577 alone confirm that Acura bulletin B25-025 applies?

No. The verified bulletin excerpt requires all listed DTCs to be set as current or history, not U3577 alone.

Which vehicle is supported by the supplied applicability evidence?

2024 Acura ZDX, United States.

What does U3577 mean?

The supplied verified database meaning is truncated and does not establish a complete definition.

20. Sources & verification

Verified
Acura U3577: If all of these DTCs are NOT SET as current or history… | EV Diagnostics