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Service bulletin 990730030C

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 id10000754
Published by NHTSA2003-03-29
Manufacturer's number990730030C
Manufacturer's date2004-08-01
Replaces990730030D
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION

NHTSA's summary

GRINDING AND / OR GROWLING NOISE IN PARK ON INCLINE. *TT TO INCLUDE 2005 AND PRIOR FWD PASSENGER VEHICLES. *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, Automatic transmission

Vehicles listed
BUICK BUICK2003
CADILLAC CADILLAC2003
CHEVROLET CHEVROLET2003
OLDSMOBILE OLDSMOBILE2003
PONTIAC PONTIAC2003

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