Audi bulletin TSB_2077458_3
What it saysThis bulletin provides workshop information when the immobilizer cannot be adapted after the loss of keys. NHTSA’s full summary ↓
Audi filed this with NHTSA as a service bulletin dated Oct 29, 2026, received Nov 4, 2026, about the electrical system. It names 25 model years (2021–2027). 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 workshop information when the immobilizer cannot be adapted after the loss of keys.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| TSB_2077458_3 | Service bulletin | Oct 29, 2026 | 11039219 |
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.
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What owners reported
Source: NHTSA complaint databaseOwners of the 25 model years this bulletin names have filed 116 complaints with NHTSA since 2015. 38 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.
BSG/alternator faulty. Started displaying “electrical malfunction!” Had to stop immediately before immediate shut down on road. Problem had been known on hybrid models of Audi specially larger models. Recall/TSB have been opened for those vehicles. Vehicle was inspected by dealership. No prior warning other than that immediate red warning
2023 Audi A3 · Electrical System · filed with NHTSA Sep 21, 2026 · ODI 11765831
Vehicle is a new 2026 Audi Q3 S Line quattro with recurring electronic system failures affecting safety-related functions, beginning on or about April 11, 2026. The vehicle has repeatedly displayed “Driver assistance systems are limited” and related driver-assist warnings with no environmental cause (clear weather, clean windshield)…
2026 Audi Q3 · Electrical System · filed with NHTSA Aug 31, 2026 · ODI 11760826
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
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 group609 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_2083693_2 | Service bulletin | Oct 29, 2026 | This Pending Service Solution (PSS) requests that technicians enter a record in the PSS database in instances when the connectivity module c… |
| TSB_2083797_1 | Service bulletin | Oct 28, 2026 | This bulletin provides information when there are nosies from the central loud speaker. |
| TSB_2081614_2 | Service bulletin | Oct 23, 2026 | This bulletin provides information when the message "Automatic user identifaction failed" appers in the myAudi application. |
| TSB_2083093_3 | Service bulletin | Oct 22, 2026 | This bulletin is a service overview of combined software update 02.03.00/A, 02.14.00/A Q3 (FJ). |
| TSB_2081006_4 | Service bulletin | Oct 22, 2026 | This Pending Service Solution (PSS) requests that technicians enter a record in the PSS database when the Bluetooth/Audi smartphone interfac… |
| TSB_2083723_1 | Service bulletin | Oct 21, 2026 | This bulletin provides information when the MMI cannot be operated by touch. |
| TSB_2082553_3 | Service bulletin | Oct 21, 2026 | This bulletin provides infomraiton when there are noises in the area of the panoramic display, noises between the panoramic display and back… |
| TSB_2083713_1 | Service bulletin | Oct 20, 2026 | This Pending Service Solution (PSS) requests that technicians enter a record in the PSS database when tehre are noises from the central loud… |
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_2077458_3 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_2077458_3 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_2077458_3 cover?
The manufacturer filed it against 25 model years: 2027 Audi A3, 2026 Audi A3, 2025 Audi A3, 2024 Audi A3, 2023 Audi A3, 2022 Audi A3 and more. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.