Audi bulletin 931K
What it saysA software update for the high-voltage battery that contains quality improvement measures is available for Audi Q5 PHEV vehicles. NHTSA’s full summary ↓
Audi filed this with NHTSA as a service bulletin dated Jul 9, 2026, received May 5, 2026 — 4 documents under this number: Dealer 931K_20260709, Bulletin 931K_20260709, Bulletin 931K, Dealer 931K. It names 4 model years (2021–2024). 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 Q5 bulletin 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 communicationA software update for the high-voltage battery that contains quality improvement measures is available for Audi Q5 PHEV vehicles. The new software optimizes the diagnostic functions in the battery, enables the battery modules to be analyzed more precisely and increases the repair depth of the battery modules. Updated criteria information
Documents filed under this number
| Document | Kind | Dated | NHTSA id | At NHTSA |
|---|---|---|---|---|
| Dealer 931K_20260709 | Service bulletin | Jul 9, 2026 | 11035793 | |
| Bulletin 931K_20260709 | Service bulletin | Jul 9, 2026 | 11035790 | |
| Bulletin 931K | Service bulletin | Apr 2, 2026 | 11032120 | not found |
| Dealer 931K | Service bulletin | Apr 1, 2026 | 11032125 | 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 the Q5
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 4 model years this bulletin names have filed 240 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 931K 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 931K 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 931K cover?
The manufacturer filed it against 4 model years: 2024 Audi Q5, 2023 Audi Q5, 2022 Audi Q5, 2021 Audi Q5. Whether one particular vehicle is affected is a matter of its VIN and its build, not its model year alone.