Service bulletin SB 3133
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 | 10174796 |
| Published by NHTSA | 2020-05-07 |
| Manufacturer's number | SB 3133 |
| Manufacturer's date | 2020-04-30 |
| NHTSA component | EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT |
NHTSA's summary
This service bulletin outlines the steps to adjust the air/fuel mixture on the Spheros auxiliary heater unit for coaches operating at an altitude greater than 5000 feet above sea level.
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
Equipment and accessories
| MCI D4500 | 2017 to 2020 |
|---|
Listing a model year does not mean every vehicle of it is concerned: the document says which.