WenmarOpen by Wenmar Pro

Service bulletin 5499

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)
TypeService bulletin
NHTSA id606524
Published by NHTSA1999-08-26
Manufacturer's number5499
Manufacturer's date1999-06-01
NHTSA componentELECTRICAL SYSTEM:WIRING:INTERIOR/UNDER DASH

NHTSA's summary

ON SOME VEHICLES, A PROBLEM WITH THE INSTRUMENTATION CONTROL UNIT KEYPAD CAN OCCUR WHEN REPLACING THE ICU1 UNIT WITH THE ICU2M. *TT

The document

No address for NHTSA's copy can be built for this communication. Ask the dealer for it by the manufacturer's number.

Components

Electrical system, Wiring and fuses

Vehicles listed
FREIGHTLINER ARGOSY
FREIGHTLINER CENTURY

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