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Service bulletins for the 2004 Chevrolet Trailblazer

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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
112020032005-04-13. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. RATTLE NOISE UNDERNEATH THE VEHICLE OR AN AUTOMATIC TRANSMISSION FLUID LEAK. *EH
050620042005-04-13. Service bulletin. ENGINE AND ENGINE COOLING. S ENGINE POSSIBLE FALSE CODE DTC P0172. *EH
070820042005-04-12. Service bulletin. ENGINE AND ENGINE COOLING. HIGHER THAT PERCEIVED NORMAL ENGINE COOLANT TEMPERATURE GAUGE READINGS WHEN OPERATING THE VEHICLE IN VERY HIGH OUT SIDE AMBIENT TEMPERATURES AND IN STOP AND GO OR SLOW MOVING TRAFFIC CONDITIONS. *EH
030920042005-04-06. Service bulletin. EQUIPMENT. POPPING NOISE HEARD THROUGH THE SPEAKER SYSTEMS WHEN THE REAR SEAT AUDIO IS TURNED ON OR OFF. *TT
021220042005-04-06. Service bulletin. EQUIPMENT:APPLIANCE:AIR CONDITIONER. INADEQUATE HVAC FOR PASSENGERS SEATED IN THE SECOND AND THIRD ROW. *TT
0407300412005-03-12. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. SERVICE ENGINE SOON (SES) LIGHT ON, DIAGNOSTIC TROUBLE CODE (DTC) P0741, HARSH SHIFT, CRUISE CONTROL INOPERATIVE. *TT
0406040762005-03-12. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. INFORMATION ON UNSTABLE/ROUGH/LUMPY ENGINE IDLE, AND LOW SPEED VEHICLE SURGE, RANDOM DISTURBANCE OR VEHICLE SHUDDER. *TT
0406030022005-03-11. Service bulletin. ENGINE AND ENGINE COOLING. DIAGNOSTIC INFORMATION FOR INTERMITTENT VEHICLE NO CRANK DEAD BATTERY. *EH
0404190012005-03-11. Service bulletin. POWER TRAIN:AXLE ASSEMBLY. DIAGNOSTIC TROUBLE CODE (DTC) C0379 SET, SERVICE 4WD LIGHT ON, 4WD INOPERATIVE. *TT
0402320012005-03-11. Service bulletin. STEERING. RELEASE OF STEERING GEAR STUB SHAFT BEARING KIT FOR SERVICE. *TT UPDATED 08-15-07. *KB UPDATED 10/09/07. *NJ
0407300222005-03-08. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. HARSH GARAGE SHIFT FROM PARK TO DRIVE OR FROM PARK TO REVERSE WITH TRANSMISSION FLUID AT COLD AMBIENT TEMPERATURES. *EH
0405230032005-03-08. Service bulletin. SERVICE BRAKES, AIR:DISC:CALIPER. REVISED REAR BRAKE CALIPER BRACKET MOUNTING BOLT FASTENER SPECIFICATION. *EH
0300890182005-03-07. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. VEHICLE CONTENT CHANGES FOR THE 2004 MODEL YEAR. *EH
04081110032005-03-07. Service bulletin. STRUCTURE:BODY. REAR LICENSE PLATE POCKET PARTS NEW AVAILABLE INDIVIDUALLY. *TT
0408660042005-03-07. Service bulletin. STRUCTURE:BODY:HATCHBACK/LIFTGATE:HINGE AND ATTACHMENTS. LIFTGATE GLASS UNLATCHES ON ROUGH/BUMPY ROAD SURFACES. THIS BULLETIN REPLACES PREVIOUS BULLETIN NUMBER 04-08-66-004. *TT
0408630052005-03-07. Service bulletin. STRUCTURE:BODY:HOOD. RATTLE NOISE UNDER HOOD. *TT
0406040432005-02-16. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. UNABLE TO RESET ENGINE OIL LIFE MONITOR. *TT
0208620042005-02-16. Service bulletin. STRUCTURE:BODY. FRONT FASCIA WAVY. THIS SERVICE BULLETIN REPLACES 020862004. *EH
0406040382005-02-15. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SERVICE ENGINE SOON LIGHT ON, P1680. *TT
0406040532005-02-14. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SERVICE ENGINE SOON LIGHT ON P0133, P0172. *TT
0406010222005-02-14. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. NEW CYLINDER BORE LINER/PISTON SLEEVE REPLACEMENT PROCEDURE. *TT
040872005-02-08. Service bulletin. EXTERIOR LIGHTING. TAIL LAMPS/STOP LAMPS PRODUCT FIELD ACTION ANNOUNCEMENT. *TT ADMINISTRATIVE MESSAGE. *TT
31382005-02-01. Service bulletin. POWER TRAIN. REDUCED POWER LIGHT ON AND DIAGNOSTIC TROUBLE CODE P1680 P1221 AND OR P1271 STORED IN THE POWERTRAIN CONTROL MODULE. *EH
32092005-02-01. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM. EXHAUST MOAN AT IDLE OR PARKING LOT MANEUVERS. *EH
32742005-01-31. Service bulletin. STEERING. INSTALLATION OF A POWER STEERING HOSE TO A NEW STEERING GEAR. *EH

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