Audi bulletin TSB_2078456_2
What it saysThis bulletin provides information about a software update for the gateway. 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 3 model years (2025). 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.
Get the next Audi bulletin for your model by email Weekly, only when something new is filed. Nothing else; one-click unsubscribe.
What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationThis bulletin provides information about a software update for the gateway.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| TSB_2078456_2 | Service bulletin | Apr 30, 2026 | 11032151 | 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 themA vehicle page’s bulletin list shows the newest few communications filed against that model year; the count there is every one.
Email me new Audi bulletins for one of these models
A weekly email, sent only in a week when Audi files something new with NHTSA for the model you pick — service bulletins, campaigns, warranty extensions, over-the-air notices, every model year. Nothing else is sent; one-click unsubscribe in every message. Separate from recall alerts.
What owners reported
Source: NHTSA complaint databaseOwners of the 3 model years this bulletin names have filed 7 complaints with NHTSA since 2015. 2 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.
1) Electronic emergency brake goes on repeatedly when attempting to put vehicle in gear. 2) Speed control has coasted to a very low speed while on the highway several times, on its own with no vehicles in front of me. 3) Numerous other “glitchy” electrical issues exist. Dealer says they are collaborating with engineers in Germany.
2025 Audi A3 · Electrical System · filed with NHTSA Sep 10, 2025 · ODI 11686190
My 2025 Audi RS3 unexpectedly shifts into park and engages the electronic parking brake while the vehicle is in motion at low speeds. This issue has occurred multiple times, has been documented on at least nine occasions, and has undergone four (4) separate service attempts within the first 900 miles. The issue remains unresolved.
2025 Audi RS · Electrical System · filed with NHTSA Apr 1, 2026 · ODI 11728422
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 group540 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_2081723_3 | Service bulletin | Sep 25, 2026 | This bulleti provides informaitpon wheh the electric drive system warning lamp lights up; DTCs under 008C. |
| TSB_2083385_1 | Service bulletin | Sep 23, 2026 | This bulletin provides information when there is a warning message in the instrument cluster about external sound. |
| TSB_2076396_3 | Service bulletin | Sep 23, 2026 | This bulletin provides information regarding driver assist systems; Audi adaptive light, Audi pre sense system fault, adaptive cruise assis… |
| TSB_2063336_5 | Service bulletin | Sep 23, 2026 | This bulletin provides information when DTC C12BFF0 is stored in the lane change modeul or the radar sensor; intersection assist/lane change… |
| TSB_2068573_6 | Service bulletin | Sep 18, 2026 | This bulletin provides information when the rear parking sensor sometimes does not work, rear parking sensor loose, rear parking sensor faul… |
| TSB_2081074_2 | Service bulletin | Sep 15, 2026 | This bulletin provides information when the front assist intervenes. |
| TSB_2074059_4 | Service bulletin | Sep 15, 2026 | This bulletin provides general information about SOS Emergency Assist. |
| TSB_2058077_11 | Service bulletin | Sep 15, 2026 | This bulletin provides information when there is an Audi pressense warning, warning jolt, and/or brake engagement. |
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_2078456_2 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_2078456_2 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_2078456_2 cover?
The manufacturer filed it against 3 model years: 2025 Audi A3, 2025 Audi RS, 2025 Audi S3. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.