WenmarOpen by Wenmar Pro

Service bulletin 040525004

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 id10008664
Published by NHTSA2004-08-13
Manufacturer's number040525004
Manufacturer's date2004-03-01
NHTSA componentSERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:CONTROL UNIT/MODULE

NHTSA's summary

ELECTRONIC HYDRAULIC CONTROL UNIT (EHCU) REMOVAL PROCEDURE TO PREVENT BREAKING OFF HOLDING/LOCKING TABS. *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

Brakes, Anti-lock brakes

Vehicles listed
CHEVROLET W35002003 to 2005
CHEVROLET W45002003 to 2005
CHEVROLET W55002002
CHEVROLET W55002005
GMC W35002003 to 2005
GMC W45002003 to 2005
GMC W55002002
GMC W55002005
ISUZU NPR2003 to 2005

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