B126A on the 2024 Audi S3
The bulletins listed name this code in NHTSA's summary, or are about the same components. A bulletin or a recall listed here may apply to the model year. None of it is a diagnosis.
This code is specific to a manufacturer and is not described here. Its meaning is in the manufacturer's service information.
| TSB_2074786_3 | 2026-01-07. Service bulletin. This bulletin provides information when the arning lamp for exterior lighting is displayed in the instrument cluster; DTC U112100, U110B00, B126A29. |
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| TSB_2074786_2 | 2025-10-03. Service bulletin. This bulletin provides information when a warning lamp for exterior lighting is displayed in the instrument cluster; DTC U112100, U110B00, B126A29. |
| A9424832074786_1 | 2024-08-06. Service bulletin. This bulletin provides information in instances where the warning lamp for exterior lighting is displayed in the instrument cluster, DTC U112100, U110B00, B126A29. |
| A9424772073612_1 | 2024-05-07. Service bulletin. This Pending Service Solution (PSS) requests that technicians enter a record in the PSS database in instances where there is a headlight warning in the cluster, and the DTC B126A29, U110B00 is stored in the 09 module. |
4 on file from NHTSA, as of 2026-10-19. See them in the bulletin list. A bulletin lists model years: read the document for which vehicles it concerns.