# Service bulletin 34\-071

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: 10161171
- Published by NHTSA: 2019\-06\-11
- Manufacturer's number: 34\-071
- Manufacturer's date: 2019\-06\-10
- NHTSA component: ENGINE; EXTERIOR LIGHTING:BRAKE LIGHTS

## NHTSA's summary

Non\-Safety Campaign: Vehicles ordered with parameter for brake lights disabled when engine brake applied were built with this feature enabled.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10161171-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10161171-9999.pdf)

The document is the manufacturer's. This site does not hold it.

## Components

Engine, Lighting, Brake lights

## Vehicles listed

- 2019 KENWORTH T680
- 2019 KENWORTH T800
- 2019 KENWORTH T880
- 2019 PETERBILT 579

JSON: [/v1/bulletins/10161171](/v1/bulletins/10161171)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%2034-071&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F10161171&vehicle=Service%20bulletin%2034-071)