Audi service campaign 91MM
What it saysUpdated work instructions: Clarified instructions if green emergency call LED is not illuminated before the software update Added reference to a TSB if there are issues with the emergency call system after the software… NHTSA’s full summary ↓
Audi filed this with NHTSA as a service campaign dated Oct 15, 2025, received Sep 4, 2025 — 4 documents under this number: Dealer 91MM 20251015, Circular 91MM 20251015, Dealer 91MM, Circular 91MM. It names 4 model years (2020). A service campaign is not a safety recall — there is no NHTSA campaign number and no federal requirement — but it is usually work the manufacturer pays for on the vehicles it names; the dealer checks the VIN against the manufacturer’s list.
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What the bulletin says
Source: NHTSA's summary of the manufacturer's communicationUpdated work instructions: Clarified instructions if green emergency call LED is not illuminated before the software update Added reference to a TSB if there are issues with the emergency call system after the software update
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| Dealer 91MM 20251015 | Service campaign | Oct 15, 2025 | 11025261 | |
| Circular 91MM 20251015 | Service campaign | Oct 15, 2025 | 11025260 | |
| Dealer 91MM | Service campaign | Aug 15, 2025 | 11022661 | |
| Circular 91MM | Service campaign | Aug 15, 2025 | 11022659 |
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 260 complaints with NHTSA since 2015.
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.
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 91MM a recall?
No. A service campaign 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 91MM repair free?
A service campaign is usually paid by the manufacturer on the vehicles it names, within the terms and time limit the document sets; the dealer checks the VIN against the manufacturer’s list.
Which vehicles does 91MM cover?
The manufacturer filed it against 4 model years: 2020 Audi A4, 2020 Audi A5, 2020 Audi S4, 2020 Audi S5. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.