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Service bulletin 100401

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 id619411
Published by NHTSA2001-05-30
Manufacturer's number100401
Manufacturer's date2001-04-10
NHTSA componentPOWER TRAIN:CLUTCH ASSEMBLY:PEDAL/HAND LEVER(MOTORCYCLE)

NHTSA's summary

THIS MESSAGE STATES THAT THE CLUTCH PEDAL MEG, OR THE FLOOR, AFTER TOWING OR HAULING HEAVY LOADS UP LONG GRADES AND OCCURS EASIER AT HIGH TEMPERATURES ON 1996 THROUGH 1999 PICKUPS. *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, Clutch

Vehicles listed
CHEVROLET 2500 HD
CHEVROLET 3500 SERIES (the catalog's model; the bulletin names a series or trim of it)
CHEVROLET SILVERADO 15002004 (the catalog's model; the bulletin names a series or trim of it)
GMC 15001990
GMC 2500 HD
GMC 3500

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

Other bulletins for the same vehicles and component
PIP50722017-08-15. Service bulletin. This Preliminary Information communication provides information to the technician about vehicles that have slip in forward ranges immediately after replacing the input housing. Technician will inspect the 3-4 clutches and the forward clutch oil feed passages for leakage between circuits. Technician should apply regulated compressed air to the 3-4 clutch feed hole and the forward clutch feed hole one at a time with the input housing. Technician will need to replace the input housing if there is an air leak 3-4 clutches.
38702006-08-21. Service bulletin. CLUTCH PEDAL FADE OR CLUTCH WILL NOT DISENGAGE TYPICALLY WHEN TOWING. *TT