Audi bulletin 94CB
What it saysAn erroneous fault message may appear in the instrument cluster due to a software issue in the control unit for the headlights. NHTSA’s full summary ↓
Audi filed this with NHTSA as a service bulletin dated May 2, 2024, received Jun 25, 2024, about the exterior lighting — 4 documents under this number: Dealer 94CB_REV1 (2 filings), Bulletin 94CB_REV1 (2 filings). It names 2 model years (2024). A service bulletin is not a safety recall: it is the manufacturer telling its dealers how to diagnose or repair a condition, and whether the work is paid for depends on the warranty in force. Quoting the number at a service desk can save a diagnosis.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationAn erroneous fault message may appear in the instrument cluster due to a software issue in the control unit for the headlights.
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| Dealer 94CB_REV1 | Other | May 2, 2024 | 11002295 | |
| Bulletin 94CB_REV1 | Service bulletin | May 2, 2024 | 11002283 | |
| Dealer 94CB_REV1 | Other | May 2, 2024 | 11002195 | |
| Bulletin 94CB_REV1 | Service bulletin | May 2, 2024 | 11002183 |
The summary is NHTSA’s abstract of the document, as filed under 49 CFR 579.5. One communication is usually filed as several documents — the bulletin, a dealer notice, an owner letter — and the number on any of them finds this page. A PDF link is shown only once NHTSA’s own server has been seen to serve that document; the rest are checked over the following nights. Quote the number at a service desk; it is what the dealer’s system is keyed on.
Model years it names
Source: as the manufacturer filed themA vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
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What owners reported
Source: NHTSA complaint databaseOwners of the 2 model years this bulletin names have filed 26 complaints with NHTSA since 2015.
A complaint is one owner’s account, not a defect finding, and a bulletin is not a recall. Nothing here says this bulletin was issued because of these complaints, or that the repair it describes fixed them. Complaint files on this site begin in 2015.
More bulletins about the exterior lighting
Source: same model, same component group6 other manufacturer communications filed against these Audi models under the same component group (exterior lighting), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| SM 52-2024 | Other | Sep 3, 2024 | This special notice is to inform dealers to return the parts listed if it meets the criteria provided. |
| A9424792063739_2 | Service bulletin | Apr 12, 2024 | This bulletin provides information when the headlights do not turn off during daylight hours. |
| A942473201274917 | Service bulletin | Mar 9, 2024 | This bulletin provides information when the exterior lights have moisture accumulation. |
| A9424722073282_1 | Service bulletin | Mar 9, 2024 | This bulletin provides information on visual concerns with the headlight lens. |
| A9423672071954_1 | Service bulletin | Oct 30, 2023 | This bulletin provides information pertaining to when there are foreign objects inside of a headlight or taillight. |
| A9423652061922_3 | Service bulletin | Jun 8, 2023 | This bulletin provides detailed information on the proper documentation of optical concerns for headlights and taillights. |

Quote the number at the service desk. It is what the dealer’s system is keyed on.
Every manufacturer communication NHTSA holds for Audi, by the number printed on the letter.
Common questions
Source: NHTSA, 49 CFR 579.5Is Audi 94CB a recall?
No. A service bulletin is a manufacturer communication filed with NHTSA under 49 CFR 579.5; a safety recall carries an NHTSA campaign number (two digits, a letter, six digits) and a federal duty to repair for free. Check the vehicle’s recalls by VIN at nhtsa.gov/recalls, or on its page here.
Is the 94CB repair free?
Not automatically. A service bulletin describes how to diagnose or repair a condition; who pays depends on the warranty in force, any extension, and the dealer. Quoting the number can save a diagnosis either way.
Which vehicles does 94CB cover?
The manufacturer filed it against 2 model years: 2024 Audi Q8, 2024 Audi SQ8. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.