WenmarOpen by Wenmar Pro

Service bulletin SB-8-14

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 id10055905
Published by NHTSA2014-08-05
Manufacturer's numberSB-8-14
Manufacturer's date2014-05-02
NHTSA componentENGINE AND ENGINE COOLING:ENGINE:DIESEL; ELECTRICAL SYSTEM:SOFTWARE

NHTSA's summary

PETERBILT: THE ENGINE IDLE SHUTDOWN TIMER PARAMETER HAS BEEN PASSWORD PROTECTED, INADVERTENTLY DUE TO A SOFTWARE PROGRAMMING ERROR AND NEED TO HAVE PASSWORD PROTECTION REMOVED. *PE

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, Engine, Software

Vehicles listed
PETERBILT PETERBILT

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