Service bulletin 01-074
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 | 10164401 |
| Published by NHTSA | 2019-09-05 |
| Manufacturer's number | 01-074 |
| Manufacturer's date | 2019-08-30 |
| NHTSA component | VISIBILITY; EQUIPMENT |
NHTSA's summary
Fix-As-Fail -“ C500, T440/T470, T800, W900 chassis HVAC Controllers may become unresponsive after rotating the temperature control knob quickly. HVAC Controllers with improved firmware are available to resolve this issue.
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, Glass, wipers and mirrors
| KENWORTH C500 | 2016 to 2019 |
|---|---|
| KENWORTH T440 | 2016 to 2019 |
| KENWORTH T800 | 2016 to 2019 |
| KENWORTH W900 | 2016 to 2019 |
Listing a model year does not mean every vehicle of it is concerned: the document says which.