# Service bulletin 01\-085

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: 10217134
- Published by NHTSA: 2022\-08\-04
- Manufacturer's number: 01\-085
- Manufacturer's date: 2022\-07\-12
- NHTSA component: VISIBILITY

## NHTSA's summary

Info Only – Certain 520 model chassis built between 2014 and 2021, and equipped with the Red Dot HVAC system, may have service port spacing which will not allow the connection of a pressure gauge to both the high and low side service ports simultaneously. A specific tool is available from the supplier that will allow a technician to bypass this design issue.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2022/MC-10217134-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2022/MC-10217134-9999.pdf)

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

## Components

Glass, wipers and mirrors

## Vehicles listed

- 2014 to 2016 PETERBILT 520
- 2017 to 2022 PETERBILT 520

## Other bulletins for the same vehicles and component

- [02\-160](/bulletins/10188550.md), 2021-03-10, Service bulletin: VISIBILITY; EQUIPMENT; EQUIPMENT ADAPTIVE/MOBILITY; VISIBILITY:WINDSHIELD WIPER/WASHER. Information Only – Windshield washer pumps have a high No Trouble Found rate. Washer pumps may fail to spray due to a clogged filter.
- [02\-151](/bulletins/10169784.md), 2020-01-04, Service bulletin: VISIBILITY. Fix as Fail: Peterbilt has initiated an improvement to the Model 320/520 power window module. A vapor barrier will be installed over the module to prevent moisture.
- [02\-154](/bulletins/10167116.md), 2019-11-04, Service bulletin: VISIBILITY:WINDSHIELD WIPER/WASHER. Fix as Fail: Some model 520 right hand stand up vehicles built before 07/16/19 are experiencing washer fluid leakage from the windshield reservoir through the vent line. Resolution is to replace the current washer fluid line with a longer length.

JSON: [/v1/bulletins/10217134](/v1/bulletins/10217134)

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