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Service bulletins for the 2003 Cadillac CTS

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.

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

By type

By component

By trouble code

Bulletins, newest first
0308440082003-08-27. Service bulletin. ELECTRICAL SYSTEM. NO SOUND FROM RIGHT SPEAKERS WHEN WATCHING TV OR USING AUXILIARY RCA JACKS. *TT
0308490072003-08-27. Service bulletin. ELECTRICAL SYSTEM. REVISED INSTRUMENT PANEL, GAGES AND CONSOLE SERVICE INFORMATION. *TT
0317032003-07-25. Service bulletin. STEERING. UNDER TORQUED INTERMEDIATE STEERING SHAFT BOLT. *TT *JB
0305032003-07-24. Service bulletin. EQUIPMENT. DRIVER INFORMATION CENTER MESSAGE THAT READS MECHANICAL CD ERROR AFTER THE REPLACEMENT OF THE VDO SIX-DISK CHANGER. *TT *JB
0308430012003-04-25. Service bulletin. VISIBILITY:WINDSHIELD WIPER/WASHER. PASSENGER WIPER CONTACTS HOOD EDGE WHEN IN PARKED SERVICE POSITION. *TT
0304170042003-04-24. Service bulletin. POWER TRAIN:DRIVELINE. REVISED PROPELLER SHAFT REPLACEMENT PROCEDURE. *TT
0304170032003-04-24. Service bulletin. POWER TRAIN. VIBRATION / NOISE FROM AUTO/MANUAL SHIFTER DURING DRIVE/GEAR SHIFTS. *TT
0302350022003-04-17. Service bulletin. STEERING. MINOR SCRATCHES TO WOOD STEERING WHEELS. *TT UPDATE. *TT
0308660032003-04-17. Service bulletin. STRUCTURE:BODY:TRUNK LID. DECK LID PULL DOWN EFFORT TOO HIGH. *TT
0302350012003-04-17. Service bulletin. STEERING. NOISE/CLUNK OR LOOSE FEELING FROM STEERING COLUMN. *TT
0308420012003-04-05. Service bulletin. INTERIOR LIGHTING. DOME LAMP REPLACEMENT PROCEDURE. *TT
020730012B2003-04-04. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. HYDRA-MATIC 5L40-E SERVICEABLE COMPONENTS AND LABOR OPERATIONS. ORIGINAL NOT YET RECEIVED. *TT BULLETIN 02-07-30-012B NOT YET RECEIVED. *TT
020852004B2003-03-29. Service bulletin. EQUIPMENT:ELECTRICAL. REMOTE KEYLESS ENTRY (RKE) SYSTEMS DOES NOT FUNCTION PROPERLY / INOPERATIVE. *TT
0206010372003-03-28. Service bulletin. ENGINE AND ENGINE COOLING. EXCESSIVE ENGINE NOISE. *TT
0203100072003-03-27. Service bulletin. SUSPENSION. TIRE SIDEWALL MARKING CHANGE FOR SPEED RATING AND TPC NUMBER. *TT
0200890192003-03-27. Service bulletin. UNKNOWN OR OTHER. LABOR OPERATION TIMES AND STRAIGHT TIME PILOT UPDATE. *TT
020730033A2003-02-27. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). TRANSMISSION CONTROL MODULE (TCM) WILL NOT COMMUNICATE WITH NON-TECH 2 SERVICE OR TEST EQUIPMENT. *TT
0209410032003-02-14. Service bulletin. AIR BAGS. AIR BAG INDICATOR ILLUMINATES INTERMITTENTLY, INSTRUMENT PANEL CLUSTER (IPC) AND SENSING AND DIAGNOSTIC MODULE (SDM) DIAGNOSTIC TROUBLE CODE (DTC) U1000 SET, ONSTAR SYSTEM DTC U1088 SET. *TT
020852004A2003-02-12. Service bulletin. EQUIPMENT. ADVANCED SERVICE INFORMATION-REMOTE KEYLESS ENTRY (RKE) SYSTEM DOES NOT FUNCTION PROPERLY / INOPERATIVE. *TT
0207300332003-02-12. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:CONTROL MODULE (TCM/PCM/TECM). TRANSMISSION CONTROL MODULE (TCM) WILL NOT COMMUNICATE WITH NON-TECH 2 SERVICE OR TEST EQUIPMENT. *TT
020729006A2003-02-12. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION. NOISE, WIND NOISE, FLUTTER AT APPROXIMATELY 40 MPH. *TT
0108022002-11-22. Service bulletin. TIRES. INFORMATION PERTAINING TO CUSTOMER COMPLAINT THAT THE RIDE IS TOO STIFF, FROM OVER INFLATED TIRES.*TT
2507022002-11-22. Service bulletin. SEATS:FRONT ASSEMBLY:POWER ADJUST. BRIEF INFORMATION REGARDING INOPERATIVE POWER SEATS. *TT
1807022002-11-22. Service bulletin. STRUCTURE:BODY. THIS MESSAGE IS FOR CONCERNS OF WATER CONDENSATION, SOAP BUBBLES OR DUST BEING TRAPPED AROUND THE PERIMETER OF THE REAR APPLIQUE AT THE CHIMSEL. *TT
1607022002-11-22. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. THIS MESSAGE CONCERNS INOPERATIVE SUNROOFS. *TT

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