# Service bulletin SB54\-321

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: 10166839
- Published by NHTSA: 2019\-10\-30
- Manufacturer's number: SB54\-321
- Manufacturer's date: 2019\-10\-30
- NHTSA component: EQUIPMENT; STEERING: STEERING WHEEL/HANDLE BAR; ELECTRICAL SYSTEM

## NHTSA's summary

Service bulletin describing the procedures for service harness installation and steering wheel clockspring replacement.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10166839-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10166839-9999.pdf)

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

## Components

Electrical system, Equipment and accessories, Steering, Steering column and wheel

## Vehicles listed

- 2017 to 2020 FREIGHTLINER CASCADIA

## Other bulletins for the same vehicles and component

- [DOC\-1034438](/bulletins/10163544.md), 2019-08-07, Service bulletin: STEERING; EQUIPMENT:ELECTRICAL:RADIO/TAPE DECK/CD ETC.; STEERING: STEERING WHEEL/HANDLE BAR. Service Solution to customers regarding Steering wheel switches inoperative, AM/FM radio reception corrupted, failure of the steering wheel clockspring.
- [Steering Wheel A](/bulletins/10157987.md), 2019-04-08, Service bulletin: AIR BAGS:FRONTAL; EQUIPMENT; STEERING: STEERING WHEEL/HANDLE BAR. Steering Wheel Air Bag Options
- [DOC\-1033628](/bulletins/10156469.md), 2019-04-01, Service bulletin: STEERING; STEERING: STEERING WHEEL/HANDLE BAR. SS 1033628 New Cascadia Ground Strategy \-Steering Wheel Clockspring Failures
- [FL796](/bulletins/10156449.md), 2019-04-01, Service bulletin: STEERING; STEERING: STEERING WHEEL/HANDLE BAR. Dealer Bulletin FL796 Steering Wheel Fasteners
- [sb4641](/bulletins/10156420.md), 2019-04-01, Service bulletin: STEERING:COLUMN; STEERING. Adjusting Tilt Lock Force on TRW Steering Columns
- [Steering Wheel A](/bulletins/10156215.md), 2019-04-01, Service bulletin: STEERING: STEERING WHEEL/HANDLE BAR; AIR BAGS. Steering Wheel Air Bag Options

JSON: [/v1/bulletins/10166839](/v1/bulletins/10166839)

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