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Manufacturer communication · Service bulletin

Audi bulletin A9023492071958_1

What it saysThis bulletin provides information for when the DTC C12D5FA is stored; Audi adaptive light, Audi pre sense fault, and Audi cruise assist inoperable. NHTSA’s full summary ↓

Audi filed this with NHTSA as a service bulletin dated Oct 30, 2023, received Nov 6, 2023, about the vehicle speed control. It names 73 model years (2021–2026). 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 communication

This bulletin provides information for when the DTC C12D5FA is stored; Audi adaptive light, Audi pre sense fault, and Audi cruise assist inoperable.

Kind Service bulletin Manufacturer date Oct 30, 2023 Received by NHTSA Nov 6, 2023 Components Vehicle Speed Control

Document filed under this number

DocumentKindDatedNHTSA idAt NHTSA
A9023492071958_1Service bulletinOct 30, 202310244540PDF, 144 KB

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.

Doing the repair yourself, or pricing it before the shop does? Search the part by fitment on eBay Motors — the listing and the price are the seller’s.

Find the cruise control for the 2025 A6 →

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Model years it names

Source: as the manufacturer filed them

and 30 more on this site: 2024 Audi S6, 2023 Audi S6, 2022 Audi S6, 2021 Audi S6, 2025 Audi S7, 2024 Audi S7, 2023 Audi S7, 2022 Audi S7, 2021 Audi S7, 2025 Audi S8, 2024 Audi S8, 2023 Audi S8, 2022 Audi S8, 2021 Audi S8, 2025 Audi SQ7, 2024 Audi SQ7, 2023 Audi SQ7, 2022 Audi SQ7, 2021 Audi SQ7, 2025 Audi SQ8, 2024 Audi SQ8, 2023 Audi SQ8, 2022 Audi SQ8, 2021 Audi SQ8, 2023 Audi e-tron, 2022 Audi e-tron, 2021 Audi e-tron, 2024 Audi e-tron GT, 2023 Audi e-tron GT, 2022 Audi e-tron GT.

Also filed against model years this site has no page for: 2025 Audi E-Tron; 2025 Audi E-Tron GT; 2025 Audi E-Tron Sportback.

A 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 database

Owners of the 70 model years this bulletin names have filed 435 complaints with NHTSA since 2015. 11 of them name Vehicle Speed Control — the same broad component group this bulletin is filed under. NHTSA groups complaints coarsely, so that means the same area of the vehicle, not necessarily the same fault.

These vehicles are equipped with an automatic start/stop feature to save gas. This feature automatically turns off the engine when stopped at lights, traffic, etc. the problem is that once you apply the accelerator, it can take up to ~5 seconds for the vehicle to start moving and depending on how hard you depress the pedal, the vehicle…

2022 Audi SQ8 · Vehicle Speed Control · filed with NHTSA Sep 29, 2023 · ODI 11547256

The contact owns a 2021 Audi A7. The contact stated while driving 70 MPH with the cruise control activated, the vehicle unexpectedly decelerated. The vehicle was taken to the dealer. The dealer informed the contact that the speed control software needed to be reprogrammed. The software was updated.

2021 Audi A7 · Vehicle Speed Control · filed with NHTSA Feb 23, 2022 · ODI 11453634

During a rain storm, the vehicles rear cross traffic will force the vehicle to stop when it mistakes rain for a person. We were stopped against our will for 3 minutes. Audi corporate worked with our dealership, determined it's a known issue, and determined the vehicle is safe to drive.

2023 Audi Q7 · Vehicle Speed Control · filed with NHTSA Jun 18, 2024 · ODI 11595183

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.

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.

Photo: Christian Buehner / Unsplash

Common questions

Source: NHTSA, 49 CFR 579.5

Is Audi A9023492071958_1 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 A9023492071958_1 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 A9023492071958_1 cover?

The manufacturer filed it against 73 model years: 2025 Audi A6, 2024 Audi A6, 2023 Audi A6, 2022 Audi A6, 2021 Audi A6, 2025 Audi A7 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.