WenmarOpen by Wenmar Pro

Service bulletin 121302

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 id10002752
Published by NHTSA2003-09-13
Manufacturer's number121302
Manufacturer's date2002-12-13
NHTSA componentENGINE AND ENGINE COOLING:ENGINE

NHTSA's summary

NO START CONDITION ON TRUCKS WITH VEHICLE STABILITRACK, REAL TIME DAMPENGING, OR AUTO RIDE OR NYS, QUADRASTEER. *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

Engine

Vehicles listed
GMC C/K SERIES2003

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