# Service bulletin TT\-16\-011

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: 10184988
- Published by NHTSA: 2021\-01\-04
- Manufacturer's number: TT\-16\-011
- Manufacturer's date: 2016\-09\-20
- NHTSA component: ELECTRONIC STABILITY CONTROL:AUTOMATIC \(ASC\); AIR BAGS; SUSPENSION; BACK OVER PREVENTION; POWER TRAIN

## NHTSA's summary

Suspension \- Leveling valve driveline vibration \- 2017 and earlier Conventional Trucks equipped with a Hendrickson air suspension system. The vehicle may exhibit an intermittent driveline noise or vibration. The driver may report the condition to be more noticeable over r ough roads or after changes in the loading of the vehicle. Restriction of the leveling valve \(P/N S40G0E0080\) on the air suspension may be preventing the valve from venting properly. This would result in incorrect rear suspension ride height and incorrect pinion angle.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2016/MC-10184988-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2016/MC-10184988-9999.pdf)

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

## Components

Air bags, Driver assistance, Suspension, Transmission and driveline, Backup camera

## Vehicles listed

- 2017 HINO CONVENTIONAL MODELS

JSON: [/v1/bulletins/10184988](/v1/bulletins/10184988)

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