# Service bulletin SF598

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: 10171367
- Published by NHTSA: 2020\-02\-15
- Manufacturer's number: SF598
- Manufacturer's date: 2020\-02\-14
- NHTSA component: BACK OVER PREVENTION

## NHTSA's summary

Field Service Campaign for Cascadia Backup Alarms. On certain, vehicles the backup alarm will not sound when the headlights are in the ON position. The software controlling the backup alarm will be updated.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10171367-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10171367-9999.pdf)

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

## Components

Driver assistance, Backup camera

## Vehicles listed

- 2020 FREIGHTLINER CASCADIA

## Other bulletins for the same vehicles and component

- [SB54\-327](/bulletins/10173894.md), 2020-04-17, Service bulletin: BACK OVER PREVENTION; ELECTRICAL SYSTEM. Service Bulletin for Lengthening the Backup Light Harness. Though the backup light harness is long enough to connect to the backup light switch, it may be short enough that the wire seals in the connector can be stressed. Moisture entering through the seals can cause corrosion, resulting in a bad connection and/or failure of the switch. As a result, backup lights and, if equipped, the backup alarm, may not function when the vehicle is shifted into reverse.

JSON: [/v1/bulletins/10171367](/v1/bulletins/10171367)

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