Service bulletin SSM 52721
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 | 11005745 |
| Published by NHTSA | 2024-08-06 |
| Manufacturer's number | SSM 52721 |
| Manufacturer's date | 2024-07-15 |
| NHTSA component | UNKNOWN OR OTHER |
NHTSA's summary
Some 2021 F-150 vehicles equipped with an 8 speaker system (minor feature code IDBAF) may exhibit poor sound quality or distorted sound from all speakers. To confirm a vehicle is built with a certain minor feature code, review the build information by double-clicking the vehicle identification number (VIN) in the upper left corner in the Professional Technician System (PTS). This may be due to a recent update delivered over-the-air (OTA).
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.
| FORD F-150 | 2021 |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.