# Service bulletin TSIB 26\-04

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: 11029031
- Published by NHTSA: 2026\-02\-25
- Manufacturer's number: TSIB 26\-04
- Manufacturer's date: 2026\-02\-09
- NHTSA component: SUSPENSION; STEERING

## NHTSA's summary

This TSIB is to inform customers the recommended steering axle cleaning/greasing instructions to prevent damage on axle components due to displacement of grease from the bearings, lubrication reduction and accelerate wear for coaches with independent front suspension.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2026/MC-11029031-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2026/MC-11029031-9999.pdf)

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

## Components

Steering, Suspension

## Vehicles listed

- 2024 to 2025 MCI D4020ISTV
- 2013 to 2024 MCI D4500
- 2013 to 2024 MCI D4505
- 2020 to 2025 MCI D4520
- 2024 to 2025 MCI D45CRT
- 2024 MCI D45CRTE
- 2021 to 2024 MCI D45CRTELE
- 2018 to 2025 MCI D45CRTLE
- 2018 to 2025 MCI J3500
- 2013 to 2026 MCI J4500
- 2020 to 2021 MCI J4500E
- 2023 MCI J4500E
- 2025 MCI J4500E

JSON: [/v1/bulletins/11029031](/v1/bulletins/11029031)

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