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Other ZSL-IB-004

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.

The communication, as NHTSA indexes it (as of 2026-10-19)
TypeOther
NHTSA id11033192
Published by NHTSA2026-06-02
Manufacturer's numberZSL-IB-004
Manufacturer's date2026-04-20
NHTSA componentUNKNOWN OR OTHER

NHTSA's summary

McNeilus Truck and Manufacturing provides instructions for installing an updated park brake valve pressure switch. The updated pressure switch has a higher pressure activation and reset values which reduces the delay experienced with the previous pressure switch and addresses an unintended door alarm.

The document

The document is the manufacturer's. This site does not hold it. NHTSA files a document at one of these two addresses; we have not asked NHTSA which.

Vehicles listed
MCNEILUS VOLTERRA ZSL2024, 2025

Listing a model year does not mean every vehicle of it is concerned: the document says which.