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Service bulletins for the 2004 GMC Envoy

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.

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

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Bulletins, newest first
030920052005-05-10. Service bulletin. ELECTRICAL SYSTEM. PROGRAMMING THR ECM. *EH
030920052005-05-10. Service bulletin. SERVICE BRAKES, HYDRAULIC. SQUEAK OR A SQUEEGEE TYPE NOISE WHEN THE BRAKE PEDAL IS APPLIED OR RELEASED. *EH
070120042005-04-29. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. OIL LIFE SYSTEM RESET PROCEDURES-TRUCKS. BUICK TERAZZA 2005, GMC SIERRA DENALI 2002-2003, GMC B7 CHASSIS MEDIUM DUTY 2003-2005 AND GMC 560 C-SERIES 2003-2005 *SC
040872005-04-27. Service bulletin. EXTERIOR LIGHTING:TAIL LIGHTS. TAIL LAMP THAT MAY BECOME INOPERATIVE PREMATURELY. *EH
33732005-04-21. Service bulletin. AIR BAGS. SIR LIGHT ON STEADY AFTER BULB TEST AND NO DIAGNOSTIC TROUBLE CODES (DTCS). *TT
33512005-04-20. Service bulletin. SEATS:FRONT ASSEMBLY:SEAT HEATER/COOLER. HEATED SEAT OPERATION CLARIFICATION. *TT
3317A2005-04-20. Service bulletin. EXTERIOR LIGHTING:HEADLIGHTS. HEADLAMPS FLICKER OR DIM WHILE DRIVING. *TT
0508640032005-04-19. Service bulletin. VISIBILITY:REARVIEW MIRRORS/DEVICES:EXTERIOR. OUTSIDE REARVIEW MIRROR VIBRATION. *TT
0406040902005-04-19. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SERVICE ENGINE SOON (SES) LIGHT ON, DIAGNOSTIC TROUBLE CODE (DTC) P0483. *TT
3300C2005-04-18. Service bulletin. ELECTRICAL SYSTEM:HORN. APPLICATION OF HORN AT HORN PAD INOPERATIVE. RKE FUNCTION FOR PANIC ALARM WORKS. *TT
112020032005-04-13. Service bulletin. POWER TRAIN:AUTOMATIC TRANSMISSION. RATTLE NOISE UNDERNEATH THE VEHICLE OR AN AUTOMATIC TRANSMISSION FLUID LEAK. *EH
111920032005-04-13. Service bulletin. STRUCTURE:BODY:HATCHBACK/LIFTGATE. INTERMITTENT OPERATION OF THE END GATE DROP AND SWING FUNCTION. *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
070820042005-04-12. Service bulletin. EQUIPMENT:OTHER:OWNERS/SERVICE/OTHER MANUAL. GM SERVICE TECHNICAL COLLEGE. *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
0408570022005-03-10. Service bulletin. STRUCTURE:BODY. GENERAL WATERLEAK GUIDE. *EH
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

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