Service campaign Circular 91MM
A bulletin is a manufacturer's communication to its dealers, as NHTSA indexes it. The summary is NHTSA's. The document is the manufacturer's: read it at NHTSA. A bulletin is not a recall, and listing a model year does not mean every vehicle of it is concerned.
| Type | Service campaign |
|---|---|
| NHTSA id | 11022659 |
| Published by NHTSA | 2025-09-04 |
| Manufacturer's number | Circular 91MM |
| Manufacturer's date | 2025-08-15 |
| Campaign id or software version | 91MM |
| NHTSA component | UNKNOWN OR OTHER |
NHTSA's summary
Some customers have reported unexpected reboots of the infotainment system.
The document
The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.
| AUDI A4 | 2020 |
|---|---|
| AUDI A4 ALLROAD | 2020 |
| AUDI A5 | 2020 |
| AUDI A5 CABRIOLET | 2020 |
| AUDI A5 SPORTBACK | 2020 |
| AUDI S4 | 2020 |
| AUDI S5 | 2020 |
| AUDI S5 SPORTBACK | 2020 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.