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Audi Audi Active Lane Assist: malfunction!

Audi Active Lane Assist: malfunction!

DriveNot yet established by verified evidence.
ChargeNot yet established by verified evidence.
ServiceContact an Audi service provider or qualified repair facility for diagnostic evaluation. The official communication includes a warning that all procedures in the appropriate repair manual must be followed when removing an airbag.
Confidence90%

Quick answer

“Audi Active Lane Assist: malfunction!” is an Audi instrument-cluster alert documented in an official Audi manufacturer communication filed with NHTSA. The communication identifies a diagnostic path involving the front camera R242 and distance regulation control module J428; it does not establish a single cause from the alert alone.

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 Audi Active Lane Assist: malfunction! mean?

“Audi Active Lane Assist: malfunction!” is an Audi instrument-cluster alert documented in an official Audi manufacturer communication filed with NHTSA. The communication identifies a diagnostic path involving the front camera R242 and distance regulation control module J428; it does not establish a single cause from the alert alone.

2. Technical explanation

Audi’s official communication states that this alert, or “Traffic Jam Assist: malfunction!”, may be displayed in the instrument cluster. During workshop diagnosis, one or more fault codes may be stored in the front camera R242 (address word 00A5) and/or the distance regulation control module J428 (address word 0013). The supplied evidence specifically identifies DTC U112300, described as a databus error value, in relation to the front camera. The complete set of applicable stored DTCs and the prescribed repair procedure are not included in the supplied evidence.

3. What system is affected?

Active Lane Assist / Traffic Jam Assist-related driver-assistance functions, with official diagnostic references to front camera R242 and distance regulation control module J428.

4. How serious is this code?

Not yet established by verified evidence.

5. Symptoms you may notice

  • Instrument-cluster message: “Audi Active Lane Assist: malfunction!”
  • The official communication also documents the alternative message: “Traffic Jam Assist: malfunction!”

6. Possible causes

  • The alert alone does not establish a single cause.
  • Official diagnostic evidence references stored faults involving the front camera R242 (address word 00A5) and/or distance regulation control module J428 (address word 0013).
  • DTC U112300, described in the supplied official evidence as a databus error value, may be stored in the front camera R242.

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

  • Arrange diagnosis by an Audi service provider or another qualified repair facility.
  • Report the exact instrument-cluster message and whether “Traffic Jam Assist: malfunction!” is also displayed.
  • Do not rely on Active Lane Assist or Traffic Jam Assist until the vehicle has been evaluated.

10. Step-by-step troubleshooting

  1. A qualified workshop can check the front camera R242 at address word 00A5 and the distance regulation control module J428 at address word 0013 for stored diagnostic trouble codes.
  2. The supplied official communication specifically references checking for DTC U112300 in the front camera R242.
  3. Further diagnostic or repair steps are not established by the supplied verified evidence.

11. When to contact service

Contact an Audi service provider or qualified repair facility for diagnostic evaluation. The official communication includes a warning that all procedures in the appropriate repair manual must be followed when removing an airbag.

12. What the service center may check

  • Scan the front camera R242, address word 00A5, for stored DTCs.
  • Scan the distance regulation control module J428, address word 0013, for stored DTCs.
  • Determine whether DTC U112300, described as a databus error value, is stored in the front camera R242.

13. Possible repair or resolution

  • Not yet established by verified evidence. The supplied excerpts document the condition and diagnostic-module references but do not provide the complete prescribed repair resolution.

14. Affected vehicles

15. Related TSBs / service bulletins

  • Audi manufacturer communication A9621612061932_1, filed by NHTSA as 10186577, published January 19, 2021.
  • Audi manufacturer communication A9621652061932_2, filed by NHTSA as 10189326, published March 19, 2021.
  • Audi manufacturer communication A9621722061932_3, filed by NHTSA as 10199492, published July 26, 2021.
  • Audi manufacturer communication A9622782061932_4, filed by NHTSA as 10220395, published September 16, 2022.
  • Audi manufacturer communication A9622792061932_5, filed by NHTSA as 10222137, published September 28, 2022.

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Verified NHTSA-hosted Audi manufacturer communications document this alert and related workshop findings. The supplied applicability records identify US-market Audi A7, A8, Q5, and e-tron vehicles across overlapping 2019–2023 model-year ranges. Applicability must be confirmed for the individual vehicle.

19. Frequently asked questions

What does “Audi Active Lane Assist: malfunction!” mean?

It is an instrument-cluster malfunction indication documented by Audi. The supplied official evidence links workshop diagnosis to the front camera R242 and distance regulation control module J428, but does not establish one definitive fault from the message alone.

Is this the same as a Traffic Jam Assist malfunction?

Audi’s official communication documents “Traffic Jam Assist: malfunction!” as an alternative instrument-cluster indication addressed by the same communication.

What fault code may be found?

The supplied evidence specifically identifies U112300, described as a databus error value, as a possible stored DTC for the front camera R242. It does not establish that this code will be present in every vehicle with the alert.

Which vehicles are covered by the supplied evidence?

The supplied applicability records list US-market Audi A7, A8, Q5, and e-tron vehicles in overlapping 2019–2023 model-year ranges. Individual applicability is not confirmed by these records alone.

20. Sources & verification

Verified
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