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Service bulletins for the 2003 Cadillac Seville

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.

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

By type

By component

By trouble code

Bulletins, newest first
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
0306040282003-08-29. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SERVICE ENGINE SOON (SES) LIGHT ON, REDUCED VEHICLE POWER / ACCELERATION / SPEED, DIAGNOSTIC TROUBLE CODE (DTC) P0420. *TT
0307300142003-08-29. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SERVICE ENGINE SOON (SES) LIGHT / MESSAGE DISPLAYED, DIAGNOSTIC TROUBLE CODES P0731, P0732 SET OR STORED IN HISTORY. *TT
0301390062003-08-26. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. DIFFICULT TO MAINTAIN DESIRED HVAC TEMPERATURE. *TT
0306020042003-08-26. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. LOSS OF ENGINE COOLANT. *TT
030602004A2003-08-26. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. LOSS OF ENGINE COOLANT. *TT
010850002B2003-08-26. Service bulletin. SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER. FRONT HEATED SEAT INOPERATIVE/COLD. *TT THIS BULLETIN REPLACES 01-08-50-002B DATED 05/01/2003. *TT
0314032003-07-25. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. PRODUCT FIELD INFORMATION REGARDING ENGINE MISFIRE CONDITION DUE TO A LOSS OF SIGNAL FROM THE POWER TRAIN MODULE, PTM, TO THE IGNITION COIL. *TT *JB
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
0301370012003-04-25. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. HUMMING NOISE WITH HEATER ON HIGH AND FAN SPEED AT MED/HIGH. *TT
030052003-04-24. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE MISFIRE CONDITION DUE TO A LOSS OF SIGNAL FROM THE POWERTRAIN CONTROL MODULE (PCM) TO THE IGNITION COILS. EMISSION RECALL. *TT
0302350022003-04-17. Service bulletin. STEERING. MINOR SCRATCHES TO WOOD STEERING WHEELS. *TT UPDATE. *TT
1807022002-11-22. Service bulletin. EQUIPMENT. THIS MESSAGE STATES THERE WERE APPROXIMATELY 136 VEHICLES SHIPPED WITHOUT, INCLUDING THE ONSTAR, A SCREW ON THE ATENNA WHIP WITH THE TRUNK MATERIALS. *TT
0207300312002-10-10. Service bulletin. UNKNOWN OR OTHER. INFORMATION ON INSPECTING THE JULIAN DATE CODE OF TORQUE CONVERTER CLUTCH PLUSE WIDTH MODULATED VALVE ASSEMBLY. *TT
020604024D2002-10-07. Service bulletin. ENGINE AND ENGINE COOLING. SERVICE ENGINE SOON OR CHECK ENGINE SOON MALFUNCTION INDICATOR LAMP BEING ILLUMINATED. *TT 02-06-04-024E NOT YET RECEIVED. *TT

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