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Service bulletin 180602

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 id637238
Published by NHTSA2002-11-21
Manufacturer's number180602
Manufacturer's date2002-06-18
NHTSA componentPOWER TRAIN:MANUAL TRANSMISSION

NHTSA's summary

CUSTOMERS MAY COMPLAIN OF TRANSMISSION RATTLE OR GRINDING NOISE WHILE OPERATING THE VEHICLE AT LOW ENGINE RPMS, BELOW 1200 RPMS. *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

Transmission and driveline, Manual transmission

Vehicles listed
CHEVROLET KODIAK2003
GMC TOPKICK2003

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