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Service bulletins for the 2005 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.

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

By type

By component

By trouble code

Bulletins, newest first
35052005-09-14. Service bulletin. ELECTRICAL SYSTEM. DIAGNOSTIC TROUBLE CODES INVOLVING MASS AIR FLOW (MAF)/INTAKE AIR TEMPERATURE (IAT) SENSOR; BAROMETRIC PRESSURE (BARO) SENSOR; ENGINE OIL PRESSURE (EOP) SENSOR; THROTTLE POSITION (TP) SENSOR; ACCELERATOR PEDAL POSITION (APP) SENSOR; A/C REFRIGERANT PRESSURE SENSOR; FUEL TANK PRESSURE (FTP) SENSOR. *TT
7022005-09-09. Service bulletin. ELECTRICAL SYSTEM:IGNITION:SWITCH. IGNITION KEY WILL NOT COME OUT OF THE IGNITION LOCK CYLINDER. *TT
6092005-09-02. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. OPERATING CHARACTERISTICS OF 5L40E/5L5OE TRANSMISSIONS. *SC
055242005-05-17. Service bulletin. ELECTRICAL SYSTEM. UCM REPROGRAM. *EH
050846006A2005-05-14. Service bulletin. EQUIPMENT. INFORMATION ON UPGRADING CERTAIN ONSTAR GENERATION 5 ANALOG/DIGITAL-READY SYSTEMS TO ONSTAR GENERATION 6 DUAL-MODE (ANALOG/DIGITAL). *TT
0508420032005-05-14. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS. HIGH INTENSITY DISCHARGE (HID) HEADLAMPS - DISPOSAL INSTRUCTIONS. *TTT
0506040162005-05-13. Service bulletin. ENGINE AND ENGINE COOLING. ENGINE WILL NOT CRANK. *TT
32682005-05-12. Service bulletin. POWER TRAIN. INTERMITTENT UNWANTED DOWNSHIFT, NO UPSHIFT 5L40E/5L50E. *TT
031020052005-05-10. Service bulletin. ENGINE AND ENGINE COOLING. ENGINE CONTROL MODULE ECM REPROGRAM. *EH
08042005-04-30. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. OIL LIFE SYSTEM RESET PROCEDURES - CARS. *NM
33482005-04-21. Service bulletin. ELECTRICAL SYSTEM. FRONT PASSENGER PRESENCE SENSOR. *EH UPDATE. *TT
32982005-04-21. Service bulletin. ENGINE AND ENGINE COOLING. ECM REPLACEMENT WITH NTF. *EH
33072005-04-21. Service bulletin. ELECTRICAL SYSTEM:STARTER ASSEMBLY. NO CRANK NO START. *TT
33552005-04-21. Service bulletin. VISIBILITY:SUN/MOON ROOF ASSEMBLY. CAN NOT FIND THE SUNROOF RAP RELAY. *TT
0508610012005-04-19. Service bulletin. SUSPENSION:FRONT:CONTROL ARM:UPPER ARM. AVAILABILITY OF UPPER CONTROL ARM BRACKET SERVICE KIT FOR CAMBER ADJUSTMENTS. *TT
0508500032005-04-19. Service bulletin. SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER. HEATED SEAT INOPERATIVE AFTER REPAIR WITHIN ONE WEEK OF USAGE. *TT
0406030152005-04-19. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. NO START, DISCHARGED BATTERY. *TT
0406030142005-04-19. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. DIAGNOSING A NO CRANK AND NO START CONDITION DUE TO DISCHARGED BATTERY. *EH
0406030142005-04-19. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. DIAGNOSING A NO CRANK AND NO START CONDITION DUE TO DISCHARGED BATTERY. *TT
030847001A2005-04-19. Service bulletin. EQUIPMENT:ELECTRICAL. CIGAR LIGHTER AND ACCESSORY POWER OUTLETS TIME OUT 10 MINUTES AFTER IGNITION SHUT-OFF OR OUTLETS REMAIN ON AFTER IGNITION SHUT-OFF. *TT UPDATE. *TT
0408560022005-03-14. Service bulletin. EQUIPMENT:ELECTRICAL:ANTI-THEFT DEVICES. CONTENT THEFT DETERRENT (CTD) SYSTEM INOPERATIVE. *TT
0404170032005-03-12. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. DRIVELINE VIBRATION MOAN NOISE AT HIGHWAY SPEEDS. *EH
0406040772005-03-12. Service bulletin. FUEL SYSTEM, OTHER:STORAGE:FUEL GAUGE SYSTEM. NO START, INACCURATE FUEL GAUGE. *TT
0400890272005-02-12. Service bulletin. UNKNOWN OR OTHER. CTS-V UNIQUE FEATURES NOT COMMON WITH OTHER CADILLAC VEHICLES. *TT
0408980032004-12-29. Service bulletin. STRUCTURE:BODY. LAMINATED STEELS -- GENERAL INFORMATION AND SPECIFIC REPAIR PROCEDURES FOR LOWER RAIL REPLACEMENT. *TT

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