Audi bulletin SM 13-2026
What it saysThis special notice is to inform dealers to return the parts listed if it meets the criteria provided. NHTSA’s full summary ↓
Audi filed this with NHTSA as a manufacturer communication dated Mar 16, 2026, received Apr 7, 2026, about the forward collision avoidance. It names 77 model years (2017–2026). A manufacturer communication 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 communicationThis special notice is to inform dealers to return the parts listed if it meets the criteria provided.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| SM 13-2026 | Other | Mar 16, 2026 | 11030982 |
What the document itself lists
Parts the bulletin names
| Part number | Description | Qty | Find it |
|---|---|---|---|
| 4K8-907-639-H | — | — | |
| 4K0-907-639-H | — | — | |
| 4M0-907-639-K | — | — | |
| 4KE-907-639-G | — | — | |
| 4N0-907-639-J | — | — |
Read by machine from the document NHTSA serves (1 page), read Sep 30, 2026. A part number is shown only where it matches Audi’s own catalogue shape, an operation only with its code and time, and a description only where the reader got it whole; anything it could not settle is left out, and the PDF is the record. Times are the manufacturer’s warranty allowances, not a quote. Listings and prices on eBay Motors are the seller’s.
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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 adaptive cruise control for the 2026 A6 →Affiliate disclosure: some links on this page are affiliate links. If you request a quote or buy through them we may earn a commission at no extra cost to you. Nothing on this page changes because of it.
Model years it names
Source: as the manufacturer filed themand 36 more on this site: 2020 Audi Q8, 2019 Audi Q8, 2025 Audi Q8 e-tron, 2024 Audi Q8 e-tron, 2026 Audi RS, 2025 Audi RS, 2024 Audi RS, 2023 Audi RS, 2022 Audi RS, 2021 Audi RS, 2026 Audi RS Q8, 2025 Audi RS Q8, 2024 Audi RS Q8, 2023 Audi RS Q8, 2022 Audi RS Q8, 2021 Audi RS Q8, 2020 Audi RS Q8, 2025 Audi S6, 2024 Audi S6, 2023 Audi S6, 2022 Audi S6, 2021 Audi S6, 2020 Audi S6, 2026 Audi S8, 2025 Audi S8, 2024 Audi S8, 2023 Audi S8, 2022 Audi S8, 2021 Audi S8, 2020 Audi S8, 2018 Audi S8, 2023 Audi e-tron, 2022 Audi e-tron, 2021 Audi e-tron, 2020 Audi e-tron, 2019 Audi e-tron.
Also filed against model years this site has no page for: 2026 Audi A7.
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 databaseOwners of the 76 model years this bulletin names have filed 1,387 complaints with NHTSA since 2015. 98 of them name Forward Collision Avoidance — 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.
I was entering the freeway at a metered on-ramp. During my wait, the vehicle warned of objects that were close even though none were close to the vehicle. I then entered the freeway and several seconds later automatic emergency braking activated at a low speed of about 20-30 miles per hour with no car in front of me for about 100 ft, and…
2023 Audi e-tron · Forward Collision Avoidance · filed with NHTSA Oct 8, 2026 · ODI 11769995
On April 2, 2025, while driving on Interstate 25, my 2021 Audi Q8 Premium Plus experienced a catastrophic engine and electrical failure. This included the generator system failing, which resulted in a complete loss of power, disabling all active safety systems (including electronic stability control, braking assist, and lane monitoring)…
2021 Audi Q8 · Forward Collision Avoidance · filed with NHTSA Apr 22, 2025 · ODI 11656169
On sunday february 21, 2021 at about 330pm on rt 30 in amsterdam ny we were driving in stop and go traffic less than 30mph. As the car in front of me started to slow in traffic I started to brake my A6, at about 20mph and about 1.5 car lengths behind the car in front of me the Audi presense collision warning screen activated with a red…
2019 Audi A6 · Forward Collision Avoidance · filed with NHTSA Feb 23, 2021 · ODI 11397561
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 forward collision avoidance
Source: same model, same component group2 other manufacturer communications filed against these Audi models under the same component group (forward collision avoidance), newest first.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| AWA 24-04 | Warranty extension | May 16, 2024 | Diagnosed and confirmed malfunction of the vehicle’s AEB system that resulted from failure or malfunction of the AEB system’s control unit… |
| A9023302055188_6 | Service bulletin | Jun 20, 2023 | This bulletin provides information for when the overhead view cameras are inoperative; DTCs B200FFA, B127C04, C12AE02. |
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 SM 13-2026 a recall?
No. A manufacturer communication 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 SM 13-2026 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 SM 13-2026 cover?
The manufacturer filed it against 77 model years: 2026 Audi A6, 2025 Audi A6, 2024 Audi A6, 2023 Audi A6, 2022 Audi A6, 2021 Audi A6 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.