Audi bulletin TSB_2058831_18
What it saysThis bulletin provides information when there is an electrical system warning; DTC U046900 stored in the ECM. NHTSA’s full summary ↓
Audi filed this with NHTSA as a service bulletin dated Apr 30, 2026, received May 5, 2026, about the electrical system. It names 41 model years (2019–2026). 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 communicationThis bulletin provides information when there is an electrical system warning; DTC U046900 stored in the ECM.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| TSB_2058831_18 | Service bulletin | Apr 30, 2026 | 11032132 | not found |
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 1 more on this site: 2020 Audi S8.
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 41 model years this bulletin names have filed 645 complaints with NHTSA since 2015. 322 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.
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
While operating the vehicle under normal driving conditions, the vehicle suffered an immediate, un-commanded loss of engine power and throttle response. The vehicle displayed a critical dashboard restriction stating: “Maximum engine speed 2500 RPM”, forcing an emergency limp-home mode that instantly created a roadway collision hazard.
2021 Audi A6 · Electrical System · filed with NHTSA Sep 21, 2026 · ODI 11765960
I am reaching out to update complaint number 11503265. Back in October of 2022, my vehicle turned off on me one time at the gas station and would not start until I waited 5 minutes. The vehicle did the same thing about 15 minutes later after I arrived at a friends' house. Following that incident later on that night it happened again.
2019 Audi A7 · Electrical System · filed with NHTSA Jan 26, 2023 · ODI 11503879
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 group598 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_2058831_18 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_2058831_18 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_2058831_18 cover?
The manufacturer filed it against 41 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.