Service bulletin 20NA030
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 | 10187391 |
| Published by NHTSA | 2021-02-22 |
| Manufacturer's number | 20NA030 |
| Manufacturer's date | 2020-12-01 |
| NHTSA component | SUSPENSION |
NHTSA's summary
This service bulletin provides a procedure to correct a customer concern of Rear Air Suspension Inoperative.
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
Suspension
| CHEVROLET SILVERADO 4500 | 2019 (the catalog's model; the bulletin names a series or trim of it) |
|---|---|
| CHEVROLET SILVERADO 6500 | 2019 (the catalog's model; the bulletin names a series or trim of it) |
| CHEVROLET duplicate SILVERADO 5500 | 2019 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
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