# Service bulletin 19506

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: 10163387
- Published by NHTSA: 2019\-08\-02
- Manufacturer's number: 19506
- Manufacturer's date: 2019\-07\-11
- NHTSA component: SERVICE BRAKES, AIR

## NHTSA's summary

The ADB22X caliper on the left \(driver side\) rear corner on school bus applications may experience an unintended reduction in running clearance during operation, which can lead to a dragging brake. The problem occurs intermittently.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2019/MC-10163387-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2019/MC-10163387-9999.pdf)

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

## Components

Brakes

## Vehicles listed

- 2016 to 2020 IC BUS CESB
- 2019 IC BUS RESB

JSON: [/v1/bulletins/10163387](/v1/bulletins/10163387)

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