# Service bulletin IB\-23\-124

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: 11011235
- Published by NHTSA: 2024\-12\-04
- Manufacturer's number: IB\-23\-124
- Manufacturer's date: 2023\-10\-04
- Campaign id or software version: IB\-23\-124
- NHTSA component: POWER TRAIN

## NHTSA's summary

Service Bulletin for Transit Vehicles to reduce the gearboxes PMI interval due to failing filters.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-11011235-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-11011235-9999.pdf)

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

## Components

Transmission and driveline

## Vehicles listed

- 2019 to 2020 PROTERRA CATALYST
- 2019 to 2023 PROTERRA ZX5

JSON: [/v1/bulletins/11011235](/v1/bulletins/11011235)

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