Verified EV diagnostic knowledge page

Audi Fault: Limited warning messages...

Fault: Limited warning messages...

Common search variants: Fault: Limited warning messages · Search ignores case and common separators.

DriveUnknown. Verified evidence does not establish whether driving is safe when this warning is displayed.
ChargeUnknown. Verified evidence does not establish whether charging is safe or affected.
ServiceService need is listed as unknown in the diagnostic record. Because official Audi TSBs address this warning and DTC B174404, contact an Audi service provider for diagnosis.
Confidence90%

Quick answer

Audi identifies this as an instrument-cluster/virtual-cockpit warning: “Fault: Limited warning messages.” Official Audi TSB material associates it with DTC B174404.

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 Fault: Limited warning messages... mean?

Audi identifies this as an instrument-cluster/virtual-cockpit warning: “Fault: Limited warning messages.” Official Audi TSB material associates it with DTC B174404.

2. Technical explanation

Verified NHTSA-hosted Audi manufacturer communications state that this warning can appear in the instrument cluster or virtual cockpit with DTC B174404. The supplied evidence does not establish the underlying fault mechanism, a specific repair, or whether vehicle functions are otherwise affected.

3. What system is affected?

Instrument cluster / virtual cockpit warning-message function.

4. How serious is this code?

Unknown. The diagnostic record lists severity as unknown.

5. Symptoms you may notice

  • The instrument cluster or virtual cockpit displays: “Fault: Limited warning messages.”
  • DTC B174404 may be present.

6. Possible causes

  • Not yet established by verified evidence.

7. Can I still drive the vehicle?

Unknown. Verified evidence does not establish whether driving is safe when this warning is displayed.

8. Can I charge the vehicle?

Unknown. Verified evidence does not establish whether charging is safe or affected.

9. What you can safely do

  • Record the exact warning message and any accompanying indicators.
  • Arrange diagnosis by an Audi service provider or qualified repair facility.
  • Do not attempt high-voltage system repair based on this warning.

10. Step-by-step troubleshooting

  1. A qualified technician can confirm whether DTC B174404 is stored and consult the applicable Audi service information.
  2. Further owner-performed diagnostic steps are not established by the verified evidence.

11. When to contact service

Service need is listed as unknown in the diagnostic record. Because official Audi TSBs address this warning and DTC B174404, contact an Audi service provider for diagnosis.

12. What the service center may check

  • Confirm the warning in the instrument cluster or virtual cockpit.
  • Check for DTC B174404.
  • Consult the applicable Audi TSB revision for the specific vehicle.

13. Possible repair or resolution

  • Not yet established by verified evidence.

14. Affected vehicles

15. Related TSBs / service bulletins

  • Audi TSB 2071281/3, published April 9, 2025, addresses “Fault: Limited warning messages” in the virtual cockpit and DTC B174404.
  • Audi TSB 2071281/2, dated May 31, 2024, supersedes Technical Service Bulletin Group 90 number 23-38 dated August 25, 2023.
  • Audi TSB 23-38 / 2071281/1, dated August 25, 2023, addresses the warning in the instrument cluster with DTC B174404.

16. Recall information

  • No recall is established by the supplied verified evidence.

17. Official manufacturer information

Official NHTSA-hosted Audi manufacturer communications: 11017634 (TSB_2071281_3, April 9, 2025); 11002258 and 11002158 (A9024962071281_2, May 31, 2024); and 10241438 (A9023382071281_1, August 25, 2023). Verified US applicability includes 2019–2025 Audi A7, A8, Q4 e-tron, Q5, Q8 e-tron, RS e-tron GT, SQ8 e-tron, e-tron, and e-tron GT, with year ranges varying by model in the supplied record.

19. Frequently asked questions

What does “Fault: Limited warning messages” mean?

It is an Audi instrument-cluster or virtual-cockpit warning. The supplied official TSB evidence associates it with DTC B174404.

What DTC is associated with this warning?

DTC B174404.

Can I drive with this warning?

Not yet established by verified evidence.

Is this a recall?

No recall is established by the supplied verified evidence.

20. Sources & verification

Verified
Audi Fault: Limited warning messages...: Fault: Limited warning… | EV Diagnostics