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Service bulletins for the 2004 Honda Civic

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.

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

By type

By component

By trouble code

Bulletins, newest first
011620052005-05-09. Service bulletin. ELECTRICAL SYSTEM. BANK 1 TOO LEAN. *EH
011620052005-05-09. Service bulletin. ENGINE AND ENGINE COOLING. CKP SENSOR TROUBLESHOOTING. *EH
010120052005-05-09. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. DTC TROUBLESHOOTING. *EH
010120052005-05-09. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. REPLACE THE CORRECT THREE WAY CATALYTIC CONVERTER FOR DTC P0420 P01420 P2000. *EH
111620042005-05-04. Service bulletin. SERVICE BRAKES, AIR:ANTILOCK:INTERCONNECTING ASSEMBLY(WIRING). BRAKE PEDAL BOOSTER OR MASTER CYLINDER NOISE . *EH
111620042005-05-04. Service bulletin. STRUCTURE:BODY. REAR TRAY OR HIGH MOUNT RATTLING. *EH
111620042005-05-04. Service bulletin. ENGINE AND ENGINE COOLING. ALTERNATOR CONDITION NO OR LOW OUTPUT. *EH
111620042005-05-04. Service bulletin. ENGINE AND ENGINE COOLING. OIL PUMP OR SPOOL VALVEONLY OIL LEAKS. *EH
101620042005-05-04. Service bulletin. STRUCTURE:BODY. REAR TRAY OR HIGH MOUNT RATTLING. *EH
101620042005-05-04. Service bulletin. SERVICE BRAKES, AIR:SUPPLY. BRAKE PEDAL BOOSTER OR MASTER CYLINDER NOISE. *EH
101620042005-05-04. Service bulletin. ENGINE AND ENGINE COOLING. OIL PUMP OR SPOOL VALVE ONLY OIL LEAK. *EH
101620042005-05-04. Service bulletin. SUSPENSION. SPORT SUSPENSION ALIGNMENT SPECIFICATIONS. *EH
101620042005-05-04. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. GRINDS AT 2-3 UPSHIFT. *EH
101620042005-05-04. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. TRANSMISSION MODE SWITCH PERFORMANCE. *EH
0120120032005-04-30. Service bulletin. POWER TRAIN. ATF (AUTOMATIC TRANSMISSION FLUID) LEAKS FROM COOLER LINE BANJO BOLT. *SC
0120120032005-04-30. Service bulletin. STRUCTURE. 04' CIVICS DON'T COME WITH DOOR COURTESY LIGHTS. *SC
080120042005-04-29. Service bulletin. ENGINE AND ENGINE COOLING. ENGINE WON'T START? CHECK FOR LOOSE ALTERNATOR BOLTS. *SC
2042005-04-29. Service bulletin. STRUCTURE. WATER LEAK AT DOORS AND/OR FLOOR. *NM
2042005-04-29. Service bulletin. SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP. GRUNT NOISE AFTER SITTING FOR SEVERAL HOURS. *NM
2042005-04-29. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION. 2ND TO 5TH OR 3RD TO 5TH GEAR UPSHIFT. *NM
2042005-04-29. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION:TORQUE CONVERTER. AUTOMATIC TRANSMISSION FLUID LEAK AT TORQUE CONVERTER SEAL. *NM
2042005-04-29. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. DIAGNOSTIC TROUBLE CODE P0603 AFTER ECM/PCM R&R. *NM
2042005-04-29. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SULEV FAILS EVAPORATIVE EMISSIONS FUNCTION TEST. 2003-2004 CIVIC IMA. *NM
2042005-04-29. Service bulletin. UNKNOWN OR OTHER. HONDA DIAGNOSTIC SYSTEM LOCKED, NEEDS IMMOBILIZER RELEASE PASSWORD. *NM
060120042005-04-29. Service bulletin. ENGINE AND ENGINE COOLING. ENGINE CRANKING OR STARTING PROBLEMS AFTER FILL-UP. *SC

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