Service bulletin Circ 91FN_REV1
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 bulletin |
|---|---|
| NHTSA id | 10249584 |
| Published by NHTSA | 2024-02-06 |
| Manufacturer's number | Circ 91FN_REV1 |
| Manufacturer's date | 2024-01-30 |
| NHTSA component | ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:SOFTWARE |
NHTSA's summary
Affected vehicles will receive the latest software version via a software update. This software contains an optimized self-diagnosis function for the high-voltage battery. In addition to the software update, the high-voltage battery cells may experience an increased self-discharge. The high-voltage battery will be evaluated, and any affected high-voltage cell modules will be replaced.
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.
Components
Electrical system, Software
| AUDI Q4 E-TRON | 2022 to 2023 |
|---|---|
| AUDI Q4 E-TRON SPORTBACK | 2022 to 2023 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.