# Service bulletin PIT5544H

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: 11013473
- Published by NHTSA: 2025\-02\-03
- Manufacturer's number: PIT5544H
- Manufacturer's date: 2025\-01\-24
- NHTSA component: UNKNOWN OR OTHER

## NHTSA's summary

This Preliminary information communicates information on a hydrauilc rush type noise from the power steering gear. This noise is a characteristic of the new Active Hydraulic Assist System RPO NV8 and no repairs should be made. The noise is most noticeable in the cab at idle, in park, with all accessories turned off.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11013473-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11013473-9999.pdf)

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

## Vehicles listed

- 2016 to 2025 CHEVROLET SILVERADO 2500
- 2016 to 2025 CHEVROLET SILVERADO 3500
- 2016 to 2025 GMC SIERRA 2500
- 2016 to 2025 GMC SIERRA 3500

JSON: [/v1/bulletins/11013473](/v1/bulletins/11013473)

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