Audi Parking Aid: Malfunction!
Parking Aid: Malfunction!
Quick answer
For certain U.S. Audi models, “Parking Aid: Malfunction!” can indicate an inoperative acoustical and optical parking-aid system. Audi service information documents an associated driver-assistance-system DTC, B107A16, that may be stored erroneously because of a software malfunction.
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 Parking Aid: Malfunction! mean?
For certain U.S. Audi models, “Parking Aid: Malfunction!” can indicate an inoperative acoustical and optical parking-aid system. Audi service information documents an associated driver-assistance-system DTC, B107A16, that may be stored erroneously because of a software malfunction.
2. Technical explanation
Audi technical service information identifies a specific documented scenario: the driver assistance systems control module J1121 (address word 00A5) stores DTC B107A16, “Supply voltage for park assist sensor Voltage too low,” with symptom code 233474. Audi states that a software malfunction can cause this DTC to be entered erroneously.
3. What system is affected?
Acoustical and optical parking aid system; driver assistance systems control module J1121 (address word 00A5).
4. How serious is this code?
Not yet established by verified evidence.
5. Symptoms you may notice
- The acoustical and optical parking aid system is inoperative.
- The instrument cluster displays “Parking Aid: Malfunction!”.
- In the documented scenario, DTC B107A16 with symptom code 233474 is stored in J1121.
6. Possible causes
- Audi documents that a software malfunction can cause DTC B107A16 to be entered erroneously.
- Other causes are not yet established by verified evidence.
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
- Recognize that the acoustical and optical parking aid system may be inoperative.
- Arrange diagnostic evaluation by an Audi service provider or qualified repair facility.
- Do not rely on the parking aid system while it is inoperative.
10. Step-by-step troubleshooting
- Have the driver assistance systems control module J1121 (address word 00A5) checked for DTC B107A16, “Supply voltage for park assist sensor Voltage too low,” and symptom code 233474.
- Have the vehicle evaluated for the Audi-documented software-related condition.
11. When to contact service
Contact an Audi dealer or qualified repair facility if “Parking Aid: Malfunction!” is displayed and the parking aid system is inoperative. Verified evidence does not establish an immediate driving or charging restriction.
12. What the service center may check
- Confirm whether the acoustical and optical parking aid system is inoperative.
- Check J1121, address word 00A5, for B107A16 and symptom code 233474.
- Determine whether the Audi software-related condition described in the applicable technical service information is present.
13. Possible repair or resolution
- Audi documentation identifies a software malfunction as a reason B107A16 may be entered erroneously.
- The exact repair or software action is not established by the supplied verified evidence.
14. Affected vehicles
- Audi A7 · 2019–2022 · US
- Audi A8 · 2019–2022 · US
- Audi RS e-tron GT · 2019–2022 · US
- Audi e-tron · 2019–2022 · US
- Audi e-tron GT · 2019–2022 · US
15. Related TSBs / service bulletins
- NHTSA Manufacturer Communication 10203163: A9021192061689_2, published November 3, 2021. It documents the message, an inoperative acoustical and optical parking aid system, and B107A16/symptom code 233474 in J1121. Applicable bulletin scope shown in the supplied evidence includes Audi e-tron GT and RS e-tron GT for model year 2022 with zFAS.
- NHTSA Manufacturer Communication 10185279: A9020832061689_1, published December 16, 2020. It documents the same message, parking-aid condition, B107A16/symptom code 233474, and Audi’s statement that software can enter the DTC erroneously. Supplied scope includes A7, A8, and Audi e-tron quattro model years 2019–2022 with zFAS.
16. Recall information
- No recall is established by the supplied verified evidence.
17. Official manufacturer information
Official NHTSA-hosted Audi manufacturer communications: 10203163 and 10185279. Applicability data supplied for this diagnostic identifies U.S. 2019–2022 Audi A7, A8, RS e-tron GT, e-tron, and e-tron GT models; the service-bulletin excerpts additionally specify zFAS for their documented scenarios.
19. Frequently asked questions
What does “Parking Aid: Malfunction!” mean on the documented Audi vehicles?
Audi service information documents this message when the acoustical and optical parking aid system is inoperative.
Which fault code is documented with this message?
Audi documents B107A16, “Supply voltage for park assist sensor Voltage too low,” with symptom code 233474, stored in J1121 at address word 00A5.
Is a low sensor supply-voltage fault always a failed sensor or wiring problem?
No conclusion can be made from the supplied evidence. Audi specifically states that a software malfunction can cause B107A16 to be entered erroneously.
Can I drive or charge the vehicle?
Not yet established by verified evidence. The supplied information documents loss of parking-aid operation but does not provide a driving or charging determination.