Service bulletin 21NA089
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 | 10194107 |
| Published by NHTSA | 2021-05-24 |
| Manufacturer's number | 21NA089 |
| Manufacturer's date | 2021-04-22 |
| NHTSA component | SERVICE BRAKES, AIR:DISC:CALIPER |
NHTSA's summary
This technical bulletin provides a procedure to replace the rear calipers if found packed for of mud and debris.
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
Brakes, Brake caliper
| CHEVROLET SILVERADO 1500 | 2019, 2020, 2021 (the catalog's model; the bulletin names a series or trim of it) |
|---|---|
| GMC SIERRA 1500 | 2019, 2020, 2021 (the catalog's model; the bulletin names a series or trim of it) |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| 20V116000 | 2020-02-27. SERVICE BRAKES, HYDRAULIC:FOUNDATION COMPONENTS:DISC:CALIPER |
|---|
A recall listed here may apply to some of the same vehicles. Only the manufacturer can say whether it applies to one vehicle.