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Service bulletins for the 2003 Pontiac Bonneville

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.

424 on file from NHTSA, as of 2026-10-19.

By type

By component

By trouble code

Bulletins, newest first
0708032003-11-03. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. THE VME MESSAGE IS TO PROVIDE INFORMATION ABOUT A NEW PRODUCT FIELD ACTION REGARDING A CUSTOMER SATISFACTION PROGRAM FOR AN ENGINE COOLANT LEAK. THE ENGINE COOLANT MAY LEAK AT THE UPPER INTAKE MANIFOLD THROTTLE BODY GASKET OR AT THE UPPER INTAKE MANIFOLD TO LOWER INTAKE MANIFOLD GASKET. *TT
0630032003-10-29. Service bulletin. FUEL SYSTEM, OTHER:STORAGE:TANK ASSEMBLY:PRESSURE RELIEF DEVICES. INFORMATION ABOUT AN UPCOMING PRODUCT SAFETY RECALL REGARDING VEHICLES EQUIPPED WITH HIGH OUTPUT ENGINES HAVING A FUEL TANK PRESSURE SENSOR THAT MAY MALFUNCTION. *TT
0607032003-10-29. Service bulletin. UNKNOWN OR OTHER. TECHNICAL TELECAST REGARDING CONNECTOR ISSUES, P0573; AIR CONDITIONER COMPRESSOR FAILURE; MEDTRONIC TESTER; 02 SENSOR; CLUNK NOISE ON 2/3 UP SHIFT, 3/2 DOWNSHIFT, AND P0440 FUEL CAP ISSUES. *TT
0529032003-10-28. Service bulletin. STRUCTURE:BODY. WATER LEAKS IN THE TRUNK - INSPECT REAR GUTTER AREA OF THE ROOF. *TT
0508032003-10-27. Service bulletin. POWER TRAIN. WHINE NOISE CONDITION HEARD IN DRIVE OR REVERSE AND NOT PRESENT IN PARK OR NEUTRAL. *TT
030342003-10-20. Service bulletin. ENGINE AND ENGINE COOLING. ENGINE COOLANT MAY LEAK AT THE UPPER INTAKE MANIFOLD THROTTLE BODY GASKET, OR AT THE UPPER INTAKE MANIFOLD TO LOWER INTAKE MANIFOLD TO LOWER INTAKE MANIFOLD GASKET. THIS CONDITION MAY RESULT IN A LOW ENGINE COOLANT LEVEL AND HIGHER ENGINE OPERATING TEMPERATURES. *TT
020846010E2003-10-03. Service bulletin. UNKNOWN OR OTHER. PROGRAMMING ONSTAR MODULE FOR CANADIAN FRENCH VOICE RECOGNITION. *TT UPDATE. *TT UPDATED *EH
020730039C2003-09-26. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. FIRM TRANSMISSION SHIFTS, SHUDDER/CHUGGLE, TRANSMISSION WON'T DOWNSHIFT ON DECELERATION, SERVICE ENGINE SOON LIGHT ILLUMINATED, DIAGNOSTIC TROUBLE CODE P0742 SET. *TT
010846002C2003-09-26. Service bulletin. EQUIPMENT. PROGRAMMING OF REPLACEMENT ONSTAR VEHICLE COMMUNICATION AND INTERFACE MODULES (VCIM). *TT
0220032003-09-05. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. DUAL ZONE AUTOMATIC AIR CONDITIONER HEAD FAILURE. *TT
0308500122003-08-27. Service bulletin. STRUCTURE:BODY. CUPHOLDER ASSEMBLY AND REPLACEMENT PROCEDURE AVAILABLE FOR FRONT SEAT STORAGE ARMREST. *TT
0306010162003-08-26. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. LOSS OF COOLANT, MILKY COLORED OIL. *TT
0306040302003-08-15. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. MULTIPLE DRIVEABILITY SYMPTOMS OF LONG OR HARD STARTS, CHUGGLE, ROUGH IDLE AND LIGHT OR INTERMITTENT MISFIRE DUE TO CLOGGED FUEL INJECTORS. *TT
990603009A2003-04-26. Service bulletin. ENGINE AND ENGINE COOLING. FLOOR PAN CORROSION PERFORATION IN BATTERY COMPARTMENT. *TT UPDATE *EH
000310007E2003-04-26. Service bulletin. SUSPENSION. SHAKE/VIBRATION IN STEERING WHEEL, FLOOR, SEAT AT HIGHWAY SPEEDS ON SMOOTH ROADS. *TT UPDATE. *TT
010851004A2003-04-05. Service bulletin. STRUCTURE:BODY:HOOD. PREMATURE ALUMINUM HOOD CORROSION / BLISTERING. *TT
020730039A2003-03-31. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. FIRM TRANSMISSION SHIFTS, SHUDDER/CHUGGLE, TRANSMISSION WON'T DOWNSHIFT ON DECELERATION, SERVICE ENGINE SOON LIGHT ILLUMINATED, DIAGNOSTIC TROUBLE CODE P0742 SET. *TT
010850012A2003-02-27. Service bulletin. SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER. FRONT HEATED SEAT INOPERATIVE / COLD. *TT
0207300392003-02-14. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. 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
0207300392003-02-14. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. FIRM TRANSMISSION SHIFTS, SHUDDER / CHUGGLE, TRANSMISSION WON'T DOWNSHIFT ON DECELERATION, SERVICE ENGINE SOON LIGHT ILLUMINATED, DIAGNOSTIC TROUBLE CODE (DTC) P0742 SET. *TT
0207300362003-02-14. Service bulletin. POWER TRAIN. NEW INPUT AND THIRD PAWL CLUTCH ASSEMBLY CHANGES FOR THE 4T65-E TRANSMISSION FOR 2003 MODEL YEAR. *TT
000866003A2003-02-10. Service bulletin. STRUCTURE:BODY. REAR COMPARTMENT SEAT BACK TRIM PANEL ATTACHMENT ARMS / STRAPS SAG OR TRIM PANEL IS LOOSE. *TT
1607022002-11-22. Service bulletin. STRUCTURE:BODY:TRUNK LID. SOME VEHICLES MAY EXPERIENCE A CONDITION WHERE THE CLOSEOUT PANEL INSIDE THE TRUNK, BETWEEN THE TRUNK AND THE REAR SEAT, MAY FALL DOWN. *TT
020730022A2002-10-10. Service bulletin. UNKNOWN OR OTHER. SERVICE ENGINE SOON LIGHT ON WITH DIAGNOSTIC TROUBLE CODES P0716 AND / OR P0717, P0730, P0753, P0758, P1860, P1887 OR OTHER MISCELLANEOUS TRANSMISSION TROUBLE CODES SET. *TT

The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.