# Service bulletin M\-551\-001

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: 10219121
- Published by NHTSA: 2022\-09\-01
- Manufacturer's number: M\-551\-001
- Manufacturer's date: 2022\-08\-19
- NHTSA component: PARKING BRAKE

## NHTSA's summary

2009 Document reformatted to be published as a TSB in Impact. Park Brake Valve Operation

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10219121-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10219121-9999.pdf)

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

## Components

Brakes, Parking brake

## Vehicles listed

- MACK MACK

JSON: [/v1/bulletins/10219121](/v1/bulletins/10219121)

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