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Audi Rear cross-traffic assist: fault. Please contact service.

Rear cross-traffic assist: fault. Please contact service.

DriveUnknown. The supplied verified evidence does not state whether driving is safe with this message present.
ChargeUnknown. The supplied verified evidence does not state whether charging is safe or affected.
ServiceYes. The displayed Audi message explicitly says, “Please contact service.”
Confidence90%

Quick answer

Audi has documented this message as a possible sporadic lane-change/intersection-assist complaint on certain 2020–2021 US A7, A8, and e-tron vehicles. The message itself directs the driver to contact service.

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 Rear cross-traffic assist: fault. Please contact service. mean?

Audi has documented this message as a possible sporadic lane-change/intersection-assist complaint on certain 2020–2021 US A7, A8, and e-tron vehicles. The message itself directs the driver to contact service.

2. Technical explanation

Verified Audi technical-service-bulletin evidence identifies “Rear cross-traffic assist: fault. Please contact service.” as one of several instrument-cluster messages reported when lane change assist/intersection assist is sporadically not working. The supplied evidence does not establish a specific failed component or root cause for an individual vehicle.

3. What system is affected?

Rear cross-traffic assist, in the lane change assist/intersection assist area.

4. How serious is this code?

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

5. Symptoms you may notice

  • The instrument cluster displays: “Rear cross-traffic assist: fault. Please contact service.”
  • Lane change assist/intersection assist may be sporadically not working.

6. Possible causes

  • Not yet established by verified evidence for an individual vehicle.

7. Can I still drive the vehicle?

Unknown. The supplied verified evidence does not state whether driving is safe with this message present.

8. Can I charge the vehicle?

Unknown. The supplied verified evidence does not state whether charging is safe or affected.

9. What you can safely do

  • Contact an Audi service provider, as instructed by the displayed message.
  • Do not assume rear cross-traffic assist, lane change assist, or intersection assist is available when the fault message is displayed.

10. Step-by-step troubleshooting

  1. No owner-performed troubleshooting procedure is established by the supplied verified evidence.
  2. A service provider should evaluate the reported condition using applicable Audi service information.

11. When to contact service

Yes. The displayed Audi message explicitly says, “Please contact service.”

12. What the service center may check

  • Verify the customer-reported instrument-cluster message and whether lane change assist/intersection assist is sporadically inoperative.
  • Review the applicable Audi technical service bulletin information for the vehicle.

13. Possible repair or resolution

  • Not yet established by verified evidence in the supplied material.

14. Affected vehicles

15. Related TSBs / service bulletins

  • Audi/NHTSA Manufacturer Communication 10241436, A9023342063502_7, published August 2, 2023.
  • Audi/NHTSA Manufacturer Communication 10230995, A9023922063502_6, published January 26, 2023.
  • Audi/NHTSA Manufacturer Communication 10211913, A9122982063502_5, published May 4, 2022.
  • Audi/NHTSA Manufacturer Communication 10207129, A9122602063502_4, published January 6, 2022.
  • Audi/NHTSA Manufacturer Communication 10202633, A9121432063502_3, published October 20, 2021.
  • Audi/NHTSA Manufacturer Communication 10201512, A9121282063502_2, published September 3, 2021.
  • Audi/NHTSA Manufacturer Communication 10199425, A9121152063502_1, published July 16, 2021.

16. Recall information

  • Not yet established by verified evidence.

17. Official manufacturer information

Official NHTSA-hosted Audi manufacturer communications are supplied for this alert, including NHTSA Manufacturer Communication 10241436: https://static.nhtsa.gov/odi/ffdd/tsbs/TSBS_RECEIVED_2020-2024.zip#nhtsa_id=10241436

19. Frequently asked questions

What does the Audi rear cross-traffic assist fault message mean?

It is an instrument-cluster message documented by Audi in connection with reports that lane change assist/intersection assist is sporadically not working.

Which vehicles are covered by the supplied applicability evidence?

US-market 2020–2021 Audi A7, A8, and e-tron vehicles.

Is there a confirmed component failure?

No. The supplied verified evidence does not establish a specific component failure or root cause for an individual vehicle.

Can I keep driving or charging?

The supplied verified evidence does not state whether driving or charging is safe or affected.

20. Sources & verification

Verified
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