# Service bulletin SIL\-3221

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: 11018199
- Published by NHTSA: 2025\-05\-08
- Manufacturer's number: SIL\-3221
- Manufacturer's date: 2025\-05\-08
- Campaign id or software version: SIL\-3221
- NHTSA component: UNKNOWN OR OTHER

## NHTSA's summary

Altec has learned that the operation placard may not be installed at the upper controls on certain LS aerial units built from January 2023 to December 2024. This could cause confusion when operating the upper controls.

## The document

- [NHTSA's copy of the document (PDF)](https://static.nhtsa.gov/odi/tsbs/2025/MC-11018199-0001.pdf)
- [If that address does not open, try this one](https://static.nhtsa.gov/odi/tsbs/2025/MC-11018199-9999.pdf)

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

## Vehicles listed

- 2023 to 2024 ALTEC LS SERIES

JSON: [/v1/bulletins/11018199](/v1/bulletins/11018199)

[Report an error on this page](https://github.com/wenmar-pro/wenmar-open/issues/new?template=data_correction.yml&title=Data%20correction%3A%20Service%20bulletin%20SIL-3221&page=https%3A%2F%2Fopen.wenmarpro.com%2Fbulletins%2F11018199&vehicle=Service%20bulletin%20SIL-3221)