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Service bulletin 02050

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 id10007736
Published by NHTSA2004-07-09
Manufacturer's number02050
Manufacturer's date2004-01-01
NHTSA componentELECTRICAL SYSTEM

NHTSA's summary

6.6 LB7 LLY DURAMAX ALLISON LCT1000 NO SHIFT MISFIRE LOW POWER, DASH WARNING LIGHTS COMING ON, TRANSMISSION IN 3RD GEAR ALL THE TIME AND CHECK ENGINE CHECK TRANSMISSION LIGHTS ON INTERMITTENTLY. SERVICE VME. *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

Vehicles listed
CHEVROLET KODIAK2003 to 2004
GMC TOPKICK2003 to 2004

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