# Service bulletin 167\-B1633\-12

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: 10117760
- Published by NHTSA: 2017\-09\-14
- Manufacturer's number: 167\-B1633\-12
- Manufacturer's date: 2016\-11\-17
- NHTSA component: SERVICE BRAKES, HYDRAULIC:FLUID

## NHTSA's summary

SB\-16\-034 A subject vehicle may exhibit one or more of the following conditions: foaming/aeration of the hydraulic fluid in the hydro boost reservoir tank accompanied by noisy brake pedal operation, illumination of the red ?BRAKE? warning lamp, or hydraulic fluid overflowing out of the hydro boost reservoir tank. If the vehicle exhibits these symptoms, the hydro boost reservoir tank requires replacement and the system must be flushed of contamination. Perform the repair procedure below to correct the situation.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2016/MC-10117760-9999.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2016/MC-10117760-0001.pdf)

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

## Components

Brakes, Brake fluid

## Vehicles listed

- 2015 to 2017 HINO CONVENTIONAL MODELS

JSON: [/v1/bulletins/10117760](/v1/bulletins/10117760)

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