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
| PIT-5485-B | 2016-08-17. Service bulletin. EQUIPMENT:ELECTRICAL; EQUIPMENT. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN IF UNABLE TO PLACE AN ONSTAR CALL IN THE IGNITION ON MODE AFTER THE ONSTAR CANADA UPGRADE, TO CONTACT THE GM TECHNICAL ASSISTANCE CENTER ONSTAR GROUP FOR FURTHER ASSISTANCE. |
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| PIC-4935-E | 2016-08-17. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY; ELECTRICAL SYSTEM. THIS PRELIMINARY INFORMATION COMMUNICATION PROVIDES INFORMATION TO HELP THE DEALERSHIP TECHNICIANS PERFORM A PARASITIC DRAIN TEST FOR THE ONSTAR MODULE. WHEN PERFORMING BATTERY PARASITIC DRAIN TEST, THERE MAY BE SOME CONFUSION AS TO WHAT THE NORMAL POWER CONSUMPTION READING SHOULD BE FROM THE ONSTAR SYSTEM. |
| PIC-5050-A | 2016-08-17. Service bulletin. ELECTRICAL SYSTEM. THIS PRELIMINARY INFORMATION COMMUNICATION ADVISES THE TECHNICIAN THE STEPS ON REPAIRING THE CONCERN. A CUSTOMER MAY IDENTIFY A CONCERN OF UNABLE TO REACTIVATE A VEHICLE'S ONSTAR THAT HAS BEEN PREVIOUSLY DISABLED BY ONSTAR. DEALER IS TO CALL GENERAL MOTORS TECHNICAL ASSISTANCE CENTER FOR FURTHER ASSISTANCE IF THE CONCERN IS STILL PRESENT. |
| SB-10-04-20-001E | 2013-06-25. Service bulletin. POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT. CADILLAC: REAR AXLE IS MAKING A CHATTER NOISE DURING TURNING. MAY ALSO MAKE A CLUNKING SOUND DURING TURNING AS WELL. *KB |
| SB-10-08-50-003B | 2012-02-06. Service bulletin. SEATS:FRONT ASSEMBLY:HEAD RESTRAINT. GENERAL MOTORS: INFORMATION PROVIDED BY BULLETIN FOR ALL 2012 AND PRIOR GENERAL MOTOR TRUCKS AND PASSENGER VEHICLES REGARDING THE ADJUSTABLE COMFORT AND CUSTOM UPHOLSTERY OF THE DRIVER AND THE PASSENGER HEAD RESTRAINT. *PE |
| PB-10037A | 2011-06-27. Service bulletin. ELECTRICAL SYSTEM. GM: ONSTAR IS MAKING INCOMPLETE CALLS WITHOUT THE DRIVER KNOWING. WHEN HAVE A DATA CONNECTION. *RM |
| 10-00-89-017C | 2011-06-14. Service bulletin. UNKNOWN OR OTHER. GM: INFORMATION ON FIXING MULTIPLE SITUATIONS RIGHT THE FIRST TIME. *RM |
| 09-09-40-001A | 2011-06-14. Service bulletin. SEAT BELTS:FRONT:WARNING LIGHT/DEVICES; SEAT BELTS. GM: THERE ARE SEAT BELT PROBLEMS: DIFFICULTY LATCHING AND UNLATCHING BUCKLE. BUCKLE RELEASE BUTTON IS STICKING. SEAT BELT WARNING LIGHT ILLUMINATED. LIKELY CAUSED BY STICKY BEVERAGES THAT ARE SPILLED INTO THE BUCKLE ASSEMBLY. *RM UPDATED 4/3/12. *PE |
| PIT-3749D | 2011-05-26. Service bulletin. STRUCTURE:FRAME AND MEMBERS. GM: ON SOME TRUCK MODELS THERE IS SOME FRAME CORROSION. *RM UPDATED ON 5/2/2012. *KB |
| TB-050601-001B | 2009-08-05. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. CADILLAC: WHEN OPERATING IN EXTREMELY COLD WEATHER CONDITIONS, SOME VEHICLES MAY LEAK ENGINE OIL FROM THE CAM/VALVE COVER SEALS, ESPECIALLY FROM THE LEFT SIDE JUST BELOW THE OIL FILL HOLE IN THE CAM/VALVE COVER. *PE |
| 08089-B | 2009-02-10. Service bulletin. ELECTRICAL SYSTEM:SOFTWARE; ELECTRICAL SYSTEM; EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). GENERAL MOTORS CORP: SPECIAL COVERAGE ADJUSTMENT; ANALOG ONSTAR DEACTIVATION. *PE UPDATED 2/17/09. *PE |
| 08-089 | 2008-11-15. Service bulletin. EQUIPMENT:ELECTRICAL. BUICK CADILLAC CHEVROLET GMC HUMMER OLDSMOBILE PONTIAC SAAB SATURN SERVICE CAMPAIGN: SEE DOCUMENT SEARCH BUTTON FOR OWNER LETTER. SPECIAL COVERAGE ADJUSTMENT-ANALOG ONSTAR DEACTIVATION. FCC RULED IN 2002 WIRELESS CARRIERS WOULD NO LONGER RE REQUIRED TO SUPPORT ANALOG WIRELESS NETWORK STARTING IN 2008. *PE CSC LETTER WAS RECEIVED. UPDATED 12/1/08. *PE |
| 070420001 | 2008-02-26. Service bulletin. SUSPENSION:REAR. AXLE FLUID SEEPING OR LEAKING FROM REAR AXLE VENT (INSTALL REAR DIFFERENTIAL HOSE AND VENT). *NJ |
| 4555 | 2007-08-20. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. INTERMITTENT STALL, SURGE, STUMBLE, OR HESITATION DTC P1629. *KB |
| 3671 | 2006-02-17. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. REAR AXLE PINION SEAL MAY EXPERIENCE A FLUID LEAK CONDITION. *TT UPDATED 04-26-07. *KB |
| 3658 | 2006-02-17. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. TCC SURGE, CHUGGLE, OR FISHBITE 5L40E WITH V6 ENGINE. *TT |
| 3802 | 2006-01-25. Service bulletin. SUSPENSION:FRONT. CREAK NOISE FROM FRONT END WHEN BRAKING OR TURNING. *TT |
| 709 | 2005-12-15. Service bulletin. ENGINE AND ENGINE COOLING. OIL LIFE SYSTEM RESET PROCEDURES - CARS. GM TECH LINK. *TT |
| 3403 | 2005-10-29. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. INTERMITTENT DEAD BATTERY - GOES DEAD OVERNIGHT. *TT |
| 3456A | 2005-10-26. Service bulletin. VEHICLE SPEED CONTROL. TCC SURGE, SHUDDER OR CHUGGLE ON LIGHT LOAD JUST AFTER TORQUE CONVERTER CLUTCH ENGAGEMENT WITH TRANSMISSION AT OPERATING TEMPERATURE. *SC |
| 3488A | 2005-10-19. Service bulletin. ELECTRICAL SYSTEM. BULLETIN-SIT-BULLETIN-1699890: TECH 2 DISPLAYS THE INCORRECT FUEL SENDER. *SC |
| 3392 | 2005-09-28. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. THE 5L40E AND 5L50E AUTOMATIC TRANSMISSION MAY EXPERIENCE A CONDITION OF HIGH TCC SLIP SPEED AND OR DTC P0741. *TT UPDATED 09-26-07. *KB |
| 610 | 2005-08-11. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:COOLING UNIT AND LINES. TRANSMISSION OIL COOLER LINE FITTING. GM TECH LINK. *TT |
| 050846006A | 2005-05-14. Service bulletin. EQUIPMENT. INFORMATION ON UPGRADING CERTAIN ONSTAR GENERATION 5 ANALOG/DIGITAL-READY SYSTEMS TO ONSTAR GENERATION 6 DUAL-MODE (ANALOG/DIGITAL). *TT |
| 050842003 | 2005-05-14. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS. HIGH INTENSITY DISCHARGE (HID) HEADLAMPS - DISPOSAL INSTRUCTIONS. *TTT |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.