# Service bulletin TechTalk7698

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: 10180452
- Published by NHTSA: 2020\-10\-01
- Manufacturer's number: TechTalk7698
- Manufacturer's date: 2020\-09\-18
- NHTSA component: EXTERIOR LIGHTING; SERVICE BRAKES, HYDRAULIC

## NHTSA's summary

Tech Talk discussion on dim brake lights.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2020/MC-10180452-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2020/MC-10180452-9999.pdf)

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

## Components

Brakes, Lighting

## Vehicles listed

- 2020 WESTERN STAR 4800

## Other bulletins for the same vehicles and component

- [TechTalk8106](/bulletins/10187906.md), 2021-03-03, Service bulletin: EXTERIOR LIGHTING. Tech Talk discussion on 2020 Western Star 4800 signal lights dim to start.
- [SBW42\-014](/bulletins/10184656.md), 2020-12-22, Service bulletin: EQUIPMENT ADAPTIVE/MOBILITY; SERVICE BRAKES; EQUIPMENT. Western Star Service Bulletin for Access to Front Brake Zerk Fittings. Certain vehicles with Detroit front axles and Meritor EX\-L front air disc brakes do not have access to the front brake zerk fittings for lubrication.
- [TS1033768](/bulletins/10177689.md), 2020-07-31, Service bulletin: SERVICE BRAKES, HYDRAULIC. Training Solution for Western Star Front Brake Squeal \- Burnishing Procedure. The brake burnishing procedure can be used to help reduce brake related noise or imbalance concerns which may occur in the field.
- [CAL\_WS\_42001](/bulletins/10166808.md), 2019-10-30, Service bulletin: SERVICE BRAKES, AIR; EQUIPMENT. Customer Advisory Letter for WABCO HP air dryer turbo cut\-off valve replacement.

JSON: [/v1/bulletins/10180452](/v1/bulletins/10180452)

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