# Service bulletin KC\-89

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: 10203995
- Published by NHTSA: 2021\-12\-07
- Manufacturer's number: KC\-89
- Manufacturer's date: 2021\-11\-19
- NHTSA component: EQUIPMENT; EQUIPMENT:ELECTRICAL; EQUIPMENT:ELECTRICAL:ANTENNA; EQUIPMENT:APPLIANCE:TV/RADIO/SPEAKERS

## NHTSA's summary

Mack Chassis \- Field Service Bulletin Trucks \( FSB \) 395 001 Radio Antenna Filter, Installation CHU, CXU, GU, TD \( Noise, Feedback, Loss Of Volume, In the Radio While Keying The CB Microphone \)

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10203995-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10203995-9999.pdf)

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

## Components

Equipment and accessories

## Vehicles listed

- MACK CHU
- MACK CXU
- MACK GU
- MACK TD

JSON: [/v1/bulletins/10203995](/v1/bulletins/10203995)

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