# Service bulletin S26DZ

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: 11029074
- Published by NHTSA: 2026\-02\-27
- Manufacturer's number: S26DZ
- Manufacturer's date: 2026\-02\-27
- Campaign id or software version: S26DZ
- NHTSA component: SERVICE BRAKES

## NHTSA's summary

The mechanical brake switch \& bracket design has a potential for cumulative at\-limit stack up clearances to exceed the limitations of the mechanical switch. As a result, a preventative maintenance adjustment procedure is necessary and, at times, settings can be difficult to achieve.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11029074-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11029074-9999.pdf)

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

## Components

Brakes

## Vehicles listed

- 2020 to 2026 BLUE BIRD VISION SCHOOL BUS
- 2020 to 2026 BLUE BIRD VISION TRANSIT BUS

JSON: [/v1/bulletins/11029074](/v1/bulletins/11029074)

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