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Service bulletin 020730039

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 id10000185
Published by NHTSA2003-02-14
Manufacturer's number020730039
Manufacturer's date2002-10-01
NHTSA componentPOWER TRAIN:AUTOMATIC TRANSMISSION

NHTSA's summary

INFORMATION TO DEALERS REGARDING SERVICE BULLETIN 020730039 - FIRM TRANSMISSION SHIFTS, SHUDDER / CHUGGLE, TRANSMISSION WON'T DOWNSHIFT ON DECELERATION, SERVICE ENGINE SOON LIGHT ILLUMINATED, DIAGNOSTIC TROUBLE CODE (DTC) P0742 SET. *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

Trouble codes named

P0742

Vehicles listed
BUICK CENTURY2003
BUICK LESABRE2003
BUICK PARK AVENUE2003
BUICK REGAL2003
BUICK RENDEZVOUS2003
CHEVROLET IMPALA2003
CHEVROLET MONTE CARLO2003
CHEVROLET VENTURE2003
OLDSMOBILE AURORA2003
OLDSMOBILE SILHOUETTE2003
PONTIAC AZTEK2003
PONTIAC BONNEVILLE2003
PONTIAC GRAND PRIX2003
PONTIAC MONTANA2003

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
01-00-89-010J2018-05-21. Service bulletin. This informational bulletin provides a revision for 01-00-89-010I to add the 2013 model year.
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®.
08-07-30-0022008-08-21. Service bulletin. INFORMATION ON 4T65-E MN7, M15 AND M76 FRONT WHEEL DRIVE AUTOMATIC TRANSMISSION VALVE BODY RECONDITIONING, DTCS P0741, P0742, P0757, P842, HARSH SHIFTS OR SLIPS. *PE UPDATE 6/11/10. *PE
0807300022008-07-09. Service bulletin. INFORMATIONAL ON 4T65-E MN7, M15 AND M76 FRONT WHEEL DRIVE AUTOMATIC TRANSMISSION VALVE BODY RECONDITIONING, DTCS P0741, P0742, P0757, P842, HARSH SHIFTS OR SLIPS. *PE
0607300232007-01-08. Service bulletin. 4T65E TRANSMISSION 1-2 SHIFT SHUDDER AT LIGHT TO MODERATE ACCELERATION. REPLACE COMPLETE SECOND CLUTCH ASSEMBLY. *KB
3641A2006-01-25. Service bulletin. CANNOT SHIFT VEHICLE OUT OF PARK WITH DEAD OR LOW BATTERY. *TT
35632005-10-22. Service bulletin. SERVICE VME - UNABLE TO MOVE GEAR SHIFTER OUT OF PARK. *TT
35002005-09-20. Service bulletin. REPEAT FAILURES OF ALL-WHEEL DRIVE TRANSFER CASE AND/OR TRANSMISSION - UNABLE TO ATTAIN CORRECT TRANSFER CASE SELECTIVE WASHER MEASUREMENT. *TT