Service bulletin FT4558R1
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 | 10164952 |
| Published by NHTSA | 2019-09-16 |
| Manufacturer's number | FT4558R1 |
| Manufacturer's date | 2019-08-01 |
| NHTSA component | ELECTRICAL SYSTEM; ELECTRICAL SYSTEM:ALTERNATOR/GENERATOR/REGULATOR |
NHTSA's summary
Niehoff alternator regulator connections failing off
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
Electrical system, Alternator
| NOVA BUS LFS | 2016 |
|---|---|
| NOVA BUS LFS | 2018 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.
| FT4660 | 2019-08-19. Service bulletin. Alternator Cable Rubbing on Thermostat Hose |
|---|---|
| FT4659 | 2019-08-19. Service bulletin. Alternator Cable Rubbing on Thermostat Hose |
| BS3919E | 2017-08-03. Service bulletin. When the accelerator is suddenly depressed, the alternator voltage momentarily surge well above 32V because the voltage regulator response time is too long. |
| BS3891E | 2017-08-03. Service bulletin. When the accelerator is suddenly depressed, the alternator voltage momentarily surge well above 32V because the voltage regulator response time is too long. |
| BS3270E | 2016-11-04. Service bulletin. UNABLE TO PERFORM STATIONARY REGENERATION. |