WenmarOpen by Wenmar Pro

Service bulletin 030730015

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 id10002444
Published by NHTSA2003-08-29
Manufacturer's number030730015
Manufacturer's date2003-05-01
NHTSA componentPOWER TRAIN

NHTSA's summary

RELEASE OF NEW TOOLS FOR SERVICE: J 37228 - OIL PAN SEAL CUTTER, J 41736 - INSTALLER (REAR OUTPUT SHAFT SEAL) AND DT 46717 - REAR OUTPUT SHAFT SEAL REMOVER. *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

Vehicles listed
CHEVROLET W SERIES1999 to 2000
CHEVROLET W-SERIES2001 to 2003
GMC W SERIES1999 to 2000
GMC W-SERIES2001 to 2003
ISUZU NPR1999
ISUZU NPR2000 to 2003
ISUZU NQR1999, 2000, 2001, 2002, 2003

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
0407300082004-08-14. Service bulletin. AISIN AUTOMATIC TRANSMISSION FLUID SERVICE REMINDER. 2005 ISUZU NPR/NQR INCLUDED. *TT
0307300602004-03-04. Service bulletin. AUTOMATIC TRANSMISSION OIL COOLER FLUSHING ON CERTAIN MEDIUM DUTY TILT CAB MODELS AND COMMERCIAL MODELS INCLUDING MODEL YEAR 2004. *TT
030730004B2004-01-05. Service bulletin. REVISION OF AISIN TRANSMISSION QUALITY CENTER (TQC) PROGRAM BEGINNING OCTOBER 1, 2003. *TT
0307300502004-01-05. Service bulletin. APPROVED AISIN AUTOMATIC TRANSMISSION ON-VEHICLE REPAIRS. 2004 MODELS INCLUDED. *TT
0307300352003-12-04. Service bulletin. REPLACEMENT OF OUTPUT FLANGE NUT WHEN SERVICING TRANSMISSION. ALSO INCLUDES 2004 MODELS. *TT
020730025B2003-10-01. Service bulletin. HARSH SHIFTING, DELAYED UPSHIFTS WITH POSSIBLE CHECK TRANS LAMP ILLUMINATED, POSSIBLE DIAGNOSTIC TROUBLE CODE (DTC) 21 SET. TO INCLUDE 2004 MODELS. *TT
0207300252002-10-16. Service bulletin. SUBJECT REGARDING HARSH SHIFTING, DELAYED UPSHIFTS, POSSIBLE CHECK TRANS LAMP ILLUMINATED, POSSIBLE DIAGNOSTIC TROUBLE CODE 21 STORED IN THE TRANSMISSION CONTROL MODULE (TCM) MEMORY. *TT
020730025A2002-10-10. Service bulletin. HARSH SHIFTING, DELAYED UPSHIFTS, POSSIBLE CHECK TRANS LAMP ILLUMINATED, POSSIBLE DIAGNOSTIC TROUBLE CODE 21 STORED IN TCM MEMORY. *TT
0105C0042002-02-25. Service bulletin. INFORMATION REGARDING AUTOMATIC TRANSMISSION OVERHEAT. *YD
SB0105C0032001-10-16. Service bulletin. SOME CUSTOMERS MAY COMMENT ON INOPERATIVE SPEEDOMETER. *TT