Audi bulletin A9123002070573_1
What it saysThis bulletin provides a software update for instances where the integrated toll module settings can no longer be accessed via the MMI, or the Audi smartphone interface can only be used wired. NHTSA’s full summary ↓
Audi filed this with NHTSA as a service bulletin dated Jun 6, 2023, received Jul 10, 2023, about the electrical system. It names 4 model years (2021). 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 a software update for instances where the integrated toll module settings can no longer be accessed via the MMI, or the Audi smartphone interface can only be used wired. No relevant DTCs have been stored, and 91DZ has been performed.
Document filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| A9123002070573_1 | Service bulletin | Jun 6, 2023 | 10238184 | PDF, 150 KB |
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 4 model years this bulletin names have filed 32 complaints with NHTSA since 2015. 10 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.
The contact owns a 2021 Audi A5. The contact stated while the driving 35 MPH, the instrument panel was blinking on and off several times and then went dark. A local dealer was contacted. The vehicle was taken to the dealer where it was diagnosed and determined that the instrument panel needed to be replaced.
2021 Audi A5 · Electrical System · filed with NHTSA Jun 17, 2025 · ODI 11667401
Loss of electrical power while cruising on the interstate at 65 mph. There was a series of warning messages, YELLOW colored malfunctions such as "Sport differential malfunction", "electric system malfunction". Then RED colored warning message "Electric system: Malfunction!
2021 Audi RS · Electrical System · filed with NHTSA Nov 13, 2023 · ODI 11554925
The contact owns a 2021 Audi Q5. The contact stated that while driving at 5 MPH, after shifting from reverse to drive the vehicle lost all power. The contact stated that various warning lights were illuminated during the failure. The vehicle was unable to restart.
2021 Audi A5 · Electrical System · filed with NHTSA Nov 9, 2021 · ODI 11439892
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 group784 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_2080076_3 | Service bulletin | Sep 30, 2026 | This bulletin provides information when there is an engine warning lamp on; DTC P157000 is logged in the ECM. |
| TSB_2079976_3 | Service bulletin | Sep 30, 2026 | This bulletin provides information when there is occasionally audio output for entertainment when the vehicle is started. |
| TSB_2079975_3 | Service bulletin | Sep 30, 2026 | This bulletin provides informaiton when the sound output pauses automatically after starting the vehicle. |
| TSB_2079974_3 | Service bulletin | Sep 30, 2026 | This bulleitn provides informaiton when there is a translucent rectangle covering the center display. |
| TSB_2079972_4 | Service bulletin | Sep 30, 2026 | This bulletin provides information when the time does not autmotically update when daylight savings time begins or ends. |

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 A9123002070573_1 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 A9123002070573_1 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 A9123002070573_1 cover?
The manufacturer filed it against 4 model years: 2021 Audi A4, 2021 Audi A5, 2021 Audi RS, 2021 Audi S5. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.