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Service bulletin 050729006

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 id10017827
Published by NHTSA2005-12-02
Manufacturer's number050729006
Manufacturer's date2005-09-01
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION:LEVER AND LINKAGE:FLOOR SHIFT

NHTSA's summary

SHIFT CONTROL KNOB LOOSE OR DETACHED FROM SHIFT CONTROL LEVER. *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
CHEVROLET COBALT2005
SATURN ION2004, 2005

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
06-00-89-031D2021-09-07. Service bulletin. OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
06-00-89-031D2021-04-20. Service bulletin. OEM and Remanufactured Engine and Automatic Transmission/Transaxle Identification
09-07-30-018D2018-06-04. Service bulletin. This informational bulletin provides a revision for 09-07-30-018C to add the 2014 model year and update the Labor Operation.
09-07-30-018C2017-10-12. Service bulletin. This warranty administration bulletin provides information on the change in automatic transmission add conditions documentation and claim submissions
02-07-30-052J2017-08-15. Service bulletin. This informational bulletin provides technicians with information regarding automatic transmission oil cooler flow test essential tool J-45096 TransFlow®.
14632B2017-02-01. Service bulletin. 14632B - SPECIAL COVERAGE (REVISED PART INFORMATION). ON SOME VEHICLES EQUIPPED WITH AN AUTOMATIC TRANSMISSION, THE VEHICLE’S TRANSMISSION SHIFTER MAY NOT PROPERLY TRANSMIT AN ELECTRICAL SIGNAL THAT ALLOWS THE IGNITION KEY TO BE TURNED COUNTER CLOCKWISE PAST THE ACCESSORY MODE TO THE “LOCK” POSITION AFTER THE VEHICLE HAS BEEN SHIFTED INTO PARK. IF THIS OCCURS, THE IGNITION KEY CANNOT BE REMOVED FROM THE IGNITION CYLINDER WITHOUT DEPRESSING THE MANUAL RELEASE PLUNGER LOCATED ON THE UNDERSIDE OF THE STEERING COLUMN AS DESCRIBED IN THE OWNER’S MANUAL. A KEY LEFT IN THE ACCESSORY POSITION FOR AN EXTENDED PERIOD OF TIME MAY RESULT IN SEVERE BATTERY DRAIN AND A POSSIBLE NO START CONDITION. IN MOST CASES, DEALERS ARE TO REPLACE THE AUTOMATIC TRANSMISSION SHIFTER. HOWEVER, THE SERVICE PROCEDURE ALSO REQUIRES DEALERS TO UTILIZE DIAGNOSTIC INFORMATION TABLE IN SI TO ELIMINATE OTHER POSSIBLE CAUSES BEFORE REPLACING THE AUTOMATIC TRANSMISSION SHIFTER.
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