# Service bulletin SC\-23\-030

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: 11009086
- Published by NHTSA: 2024\-10\-24
- Manufacturer's number: SC\-23\-030
- Manufacturer's date: 2023\-02\-24
- Campaign id or software version: SC\-23\-030
- NHTSA component: ELECTRICAL SYSTEM

## NHTSA's summary

Software update to the HVAC controller due to a supplier change in isolator materials. The solution RPM changed to reduce the resonance heard in the cabin.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2023/MC-11009086-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2023/MC-11009086-9999.pdf)

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

## Components

Electrical system

## Vehicles listed

- 2022 to 2023 PROTERRA ZX5

JSON: [/v1/bulletins/11009086](/v1/bulletins/11009086)

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