WenmarOpen by Wenmar Pro

Service bulletin SB-258-034

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 id10047619
Published by NHTSA2012-12-05
Manufacturer's numberSB-258-034
Manufacturer's date2013-02-01
ReplacesSB-258-034-2
NHTSA componentENGINE; ELECTRICAL SYSTEM:SOFTWARE

NHTSA's summary

UD TRUCKS: TO REDUCE THE HYDROCARBON AND THE ENGINE SOOT BUILD UP, AN ENGINE HARDWARE AND SOFTWARE HAS BEEN UPDATED AND INTRODUCED. MODELS 2011-2013 UD1800, 2000, 2300, 2600, 3300. *PE UPDATED 3/26/13. *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
UD UD18002011, 2012
UD UD18002013
UD UD20002011, 2012
UD UD20002013
UD UD23002011, 2012
UD UD23002013
UD UD26002011, 2012
UD UD26002013
UD UD33002011, 2012
UD UD33002013

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