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Service bulletin 05555

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 id10016501
Published by NHTSA2005-09-15
Manufacturer's number05555
Manufacturer's date2005-08-01
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION

NHTSA's summary

PROGRAM BULLETIN (CUSTOMER SATISFACTION PROGRAM)-AISIN ATF LEVEL GAUGE INCORRECT LENGTH. *SC

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, Automatic transmission

Vehicles listed
CHEVROLET W45002005 to 2006
CHEVROLET W55002005 to 2006
GMC W45002005 to 2006
GMC W55002005 to 2006
ISUZU NPR2005
ISUZU NPR2006
ISUZU NQR2005 to 2006

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
SB-09-K-0012010-04-05. Service bulletin. ISUZU (CHEVROLET/GMC): THE TRANSMISSION SLIPS, WILL NOT SHIFT, OR MAY OVERHEAT. TECHNICIANS MAY FIND DTCS P0894 OR P0218 STORED EITHER CURRENT OR IN HISTORY. THESE CONDITIONS MAY BE CAUSED BY FRICTION MATERIAL DEBONDING FROM THE TORQUE CONVERTER CLUTCH. HARSH OR DELAYED SHIFTS, NO DRIVE, NO REVERSE, SLIPS AND THE SES/MIL MAY BE ILLUMINATED. *PE UPDATED 9/15/10. *PE
200507872005-09-15. Service bulletin. ADMINISTRATIVE MESSAGE-VEHICLES EQUIPPED WITH A 4HK1T DIESEL ENGINE AND AISIN AUTOMATIC TRANSMISSION HAVE AN AUTOMATIC TRANSMISSION FLUID (ATF) LEVEL GAUGE WITH AN INCORRECT LENGTH. *SC
0307300352003-12-04. Service bulletin. REPLACEMENT OF OUTPUT FLANGE NUT WHEN SERVICING TRANSMISSION. ALSO INCLUDES 2004 MODELS. *TT