Service bulletin 21503
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 | 10194931 |
| Published by NHTSA | 2021-06-03 |
| Manufacturer's number | 21503 |
| Manufacturer's date | 2021-05-28 |
| NHTSA component | SERVICE BRAKES, AIR |
NHTSA's summary
Certain HV, LT, MV, and RH series trucks do not conform to Federal Motor Vehicle Safety Standard (FMVSS) 121 relating to the secondary air brake 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.
Components
Brakes
| INTERNATIONAL HV | 2021 |
|---|---|
| INTERNATIONAL LT | 2021 |
| INTERNATIONAL MV | 2021 |
| INTERNATIONAL RH | 2021 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.