# Service bulletin SC\-19\-133

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: 10168950
- Published by NHTSA: 2019\-12\-07
- Manufacturer's number: SC\-19\-133
- Manufacturer's date: 2019\-11\-15
- NHTSA component: EQUIPMENT ADAPTIVE/MOBILITY; EQUIPMENT; ELECTRICAL SYSTEM

## NHTSA's summary

This campaign updates the Grayson battery thermal management system to the latest version for improved performance.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10168950-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10168950-9999.pdf)

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

## Components

Electrical system, Equipment and accessories

## Vehicles listed

- 2017 to 2019 PROTERRA CATALYST

JSON: [/v1/bulletins/10168950](/v1/bulletins/10168950)

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