Audi bulletin TSB_2063336_5
What it saysThis bulletin provides information when DTC C12BFF0 is stored in the lane change modeul or the radar sensor; intersection assist/lane change assist are inoperable. NHTSA’s full summary ↓
Audi filed this with NHTSA as a service bulletin dated Sep 23, 2026, received Oct 5, 2026, about the electrical system. It names 96 model years (2019–2027). 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 communicationThis bulletin provides information when DTC C12BFF0 is stored in the lane change modeul or the radar sensor; intersection assist/lane change assist are inoperable.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| TSB_2063336_5 | Service bulletin | Sep 23, 2026 | 11038030 |
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 themand 56 more on this site: 2024 Audi Q8 e-tron, 2026 Audi RS, 2025 Audi RS, 2024 Audi RS, 2023 Audi RS, 2022 Audi RS, 2021 Audi RS, 2027 Audi RS Q8, 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, 2025 Audi S7, 2024 Audi S7, 2023 Audi S7, 2022 Audi S7, 2021 Audi S7, 2020 Audi S7, 2027 Audi S8, 2026 Audi S8, 2025 Audi S8, 2024 Audi S8, 2023 Audi S8, 2022 Audi S8, 2021 Audi S8, 2020 Audi S8, 2026 Audi SQ7, 2025 Audi SQ7, 2024 Audi SQ7, 2023 Audi SQ7, 2022 Audi SQ7, 2021 Audi SQ7, 2020 Audi SQ7, 2027 Audi SQ8, 2026 Audi SQ8, 2025 Audi SQ8, 2024 Audi SQ8, 2023 Audi SQ8, 2022 Audi SQ8, 2021 Audi SQ8, 2020 Audi SQ8, 2024 Audi SQ8 e-tron, 2023 Audi e-tron, 2022 Audi e-tron, 2021 Audi e-tron, 2020 Audi e-tron, 2019 Audi e-tron.
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 96 model years this bulletin names have filed 887 complaints with NHTSA since 2015. 452 of them name Electrical System — 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.
Audi etron sportback lost power while driving on a busy roadway at 60mph. Car lost about 10-15 mph speed within seconds due to the vehicle weight. By the time the "drive system malfunction" and "electical system malfunction " warning lights came on I realized I could not accelerate, and and coasted to a stop on the shoulder over maybe 15…
2020 Audi e-tron · Electrical System · filed with NHTSA May 22, 2025 · ODI 11662595
My 2019 Audi e-tron developed a sunroof leak. On , Audi Exchange in Highland Park, IL repaired it as a known issue partially covered by warranty; I paid $526.53. On it leaked heavily again from the same area, soaking the headliner, dashboard, carpet, foot wells and seats. The dealer said a different issue caused it; I paid $388.88 more.
2019 Audi e-tron · Electrical System · filed with NHTSA Oct 22, 2026 · ODI 11772949
Water leaking from sunroof drains to interior of cabin. Water getting electronics wet and filling up where the battery sits as well. Both driver side and passenger side. Vehicle has numerous electrical problems such as: Vehicle auto start stop function failing (car not turning back on at traffic light) Emergency indicators not working…
2022 Audi Q8 · Electrical System · filed with NHTSA Jul 28, 2026 · ODI 11753232
In depth: 2019 Audi A6 electrical problems →
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 electrical system
Source: same model, same component group835 other manufacturer communications filed against these Audi models under the same component group (electrical system), newest first. The eight newest are listed; the rest are on the Audi list.
| Number | Kind | Dated | NHTSA’s summary |
|---|---|---|---|
| TSB_2082223_5 | Service bulletin | Sep 30, 2026 | This bulletin provides information regarding software update KD2* 03.11.00/C (28.14.01). |
| TSB_2081477_7 | Service bulletin | Sep 30, 2026 | This bulletin provides an overview of the combined software updates for cluster 3; PPE/PPC. |
| TSB_2080988_4 | Service bulletin | Sep 30, 2026 | This bulletin provides information when the rear lid only opens/clolses slightly and then stops. |
| TSB_2076899_3 | Service bulletin | Sep 30, 2026 | This bulleti provides information when the message "Parking systems: fault" appears, DTC B200044. |
| TSB_2081155_3 | Service bulletin | Sep 29, 2026 | This Pending Service Solution (PSS) requests that technicians create a record in the PSS data base in instances when the vehicle cannot be u… |
| TSB_2076135_9 | Service bulletin | Sep 29, 2026 | This bulletin provides information when the driver assist systems cause intervention by active front assist. |
| TSB_2078471_6 | Service bulletin | Sep 28, 2026 | This bulletin provides information when the digital key cannot be deleted. |
| TSB_2083387_1 | Service bulletin | Sep 25, 2026 | This bulletin provides information regarding setup in the Audi Connect app for digital key. |
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 TSB_2063336_5 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 TSB_2063336_5 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 TSB_2063336_5 cover?
The manufacturer filed it against 96 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.