# Service bulletin 21115

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: 10204128
- Published by NHTSA: 2021\-12\-07
- Manufacturer's number: 21115
- Manufacturer's date: 2021\-11\-23
- NHTSA component: SERVICE BRAKES, AIR

## NHTSA's summary

Certain LT Series trucks built with feature codes 004XCL and 004XCN \(L2.0 ADB Air disc Brakes\), over time the caliper self adjusting wrap spring may experience reduction of tension resulting in reduced caliper self\-adjuster performance.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2021/MC-10204128-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2021/MC-10204128-9999.pdf)

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

## Components

Brakes

## Vehicles listed

- 2021 INTERNATIONAL LT

JSON: [/v1/bulletins/10204128](/v1/bulletins/10204128)

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