WenmarOpen by Wenmar Pro

Service bulletins for the 2004 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.

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

By type

By component

By trouble code

Bulletins, newest first
00372D2004-06-09. Service bulletin. EQUIPMENT:ELECTRICAL. ONSTAR SYSTEM IS ATTEMPTING AND/OR COMPLETING PHONE CALLS WHICH THE OPERATOR OF THE VEHICLE DID NOT INITIATE. *TT
016752004-06-03. Service bulletin. ELECTRICAL SYSTEM. INTERMITTENT NO CRANK HOT.*MR
016802004-06-03. Service bulletin. ELECTRICAL SYSTEM. DIAGNOSTIC TROUBLE CODE P0442. *MR *TT
016202004-06-03. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. LY7 3.6L ENGINE VALVE TRAIN TICK NOISE.*MR
016072004-05-28. Service bulletin. ELECTRICAL SYSTEM:WIRING. WIRING HARNESS PARTS RESTRICTION. *TT
020132004-05-26. Service bulletin. ENGINE AND ENGINE COOLING:COOLING SYSTEM. COOLANT LEAK FROM HEAD CUP PLUGS ON GEN III ENGINES. *MR
020162004-05-25. Service bulletin. ELECTRICAL SYSTEM. THE TECH 2 CANNOT COMMUNICATE WITH GM-LAN MODULES.*MR
020002004-05-25. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. LOW OR NO OIL PRESSURE ON 2000 LS6 ENGINES. *MR
020022004-05-19. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. ENGINE- LOW MILEAGE MISFIRE. *MR
019862004-05-19. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. VALVETRAIN TICK OR CHATTER- ENGINE. *MR
019872004-05-19. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION. LS6 6SP MANUAL TRANSMISSION CTS-V DRIVELINE CLUNK DURING LOW SPEED MANUEVERS. *MR
018312004-05-07. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. 5L40E, 5L50E AUTOMATIC TRANSMISSION REVISED FLUID LEVEL CHECKING PROCEDURE. *MR
018362004-05-07. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. 3.6L LY7 ENGINE- ENGINE OIL LEAK. *MR
018422004-05-07. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. COUPLED CONVERTER AND CATASTROPHIC ENGINE FAILURE. *MR
018282004-05-07. Service bulletin. ELECTRICAL SYSTEM:12V/24V/48V BATTERY. INTERMITTENT DEAD BATTERY- GOES DEAD OVERNIGHT. *MR
018472004-05-06. Service bulletin. SERVICE BRAKES, HYDRAULIC. FRONT BRAKE GRIND NOISE. *MR
018882004-05-05. Service bulletin. STEERING. STEERING WHEEL CONTROLS FOR ONSTAR FUNCTIONALITY INCORRECT AFTER RADIO REPLACEMENT. *MR
019042004-05-05. Service bulletin. ELECTRICAL SYSTEM. CHARGING SYSTEM INOPERATIVE MESSAGE WITH POSSIBLE DIAGNOSTIC TROUBLE CODES (DTC) P0622, P1637. *MR
018862004-05-04. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. OIL TEMPERATURE RUNNING HIGH. *MR
019062004-05-04. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. TICKING NOISE ON ACCELERATION. *MR
018792004-05-04. Service bulletin. ELECTRICAL SYSTEM. A REDUCED ENGINE POWER COMPLAINT SETTING THROTTLE CODES - P0121, P0221, P2119, P2122, P2138, P2176. *TT
018892004-05-03. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM). NO VOICE RECOGNITION WITH NAVIGATION SYSTEM. *MR
016892004-04-30. Service bulletin. ELECTRICAL SYSTEM. LOOSE GROUND CAUSING MISFIRE. SIT BULLETIN 1448542. *TT
016922004-04-30. Service bulletin. EQUIPMENT. APPEARANCE OF NAVIGATION RADIO PRESETS WITH RDS. SIT BULLETIN 1442768. *TT
016952004-04-30. Service bulletin. STRUCTURE:BODY. CHANGE TO CTS REAR LICENSE PLATE APPLIQUE. SERVICE VME. SIT BULLETIN 1449234. *TT

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