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Service bulletins for the 2003 Chevrolet Express

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.

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

By type

By component

By trouble code

By topic

Bulletins, newest first
PIP4054A2008-04-07. Service bulletin. SUSPENSION:REAR; POWER TRAIN:DRIVELINE:DIFFERENTIAL UNIT. EATON LOCKING DIFFERENTIAL CHATTER SHUDDER NOISE ON TURNS, EQUIPPED WITH A LOCKING REAR DIFFERENTIAL RPO G80. *NJ UPDATED 7/17/2008. *PE
PIP33432008-04-07. Service bulletin. ENGINE AND ENGINE COOLING:EXHAUST SYSTEM:EMISSION CONTROL:CRANKCASE (PCV). POSSIBLE ENGINE OIL LEAK DUE TO PCV FREEZE-UP, EQUIPPED WITH THE 4.8, 5.3, 6.0, AND 6.2 V-8 ENGINES. *NJ
40702008-02-28. Service bulletin. POWER TRAIN:TRANSFER CASE (4-WHEEL DRIVE). TRANSFER CASE FRONT INPUT SHAFT SEAL IS POPPED OUT. EQUIPPED WITH (AWD). *NJ
070952008-01-10. Service bulletin. ELECTRICAL SYSTEM:WIRING:FUSES AND CIRCUIT BREAKERS. ENGINE COMPARTMENT FUSE BLOCK COVER ON SOME 2003-2007 CHEVROLET EXPRESS AND GMC SAVANA VEHICLES MAY BREAK WHEN THE COVER IS REMOVED, ALLOWING WATER AND ROAD CONTAMINATES TO ENTER THE FUSE BLOCK. *NJ
071032007-08-20. Service bulletin. STEERING. STEERING IDLER ARM ATTACHING BRACKET FRACTURE. *KB
0708640102007-06-22. Service bulletin. STRUCTURE:BODY:DOOR. VARIOUS REAR SLIDING DOOR CONDITIONS. *KB
31362007-02-22. Service bulletin. POWER TRAIN:MANUAL TRANSMISSION; POWER TRAIN:AUTOMATIC TRANSMISSION. SLIP CONDITION IN 2ND, 3RD, OR 4TH. DAMAGED 2-4 OR 3-4 CLUTCH. *KB UPDATED 10/31/07. *NJ
0605220062007-02-01. Service bulletin. SERVICE BRAKES, AIR. HYDRO-BOOST UNIT/POWER BRAKE BOOSTER APPEARS TO BE LEAKING. *KB
0608640322007-02-01. Service bulletin. STRUCTURE:BODY:DOOR:HINGE AND ATTACHMENTS. SIDE CARGO DOOR IS HARD TO OPEN. INSTALL NEW HINGE PINS. *KB
0503080192007-01-23. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. DIAGNOSTIC INFORMATION FOR NOISE IN STEERING AND INSPECTION OF IDLER ARM BRACKET. *KB UPDATED ON 09/19/07. *NJ
40802006-08-19. Service bulletin. SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT. ABS AND TRACTION OFF LIGHTS COMES ON INTERMITTENTLY. *TT UPDATED 03-01-07. *KB
34012006-07-19. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE:GASOLINE:TURBO/SUPERCHARGER. TURBOCHARGER OIL FEED LINE KINKED OR RESTRICTED. *TT
3691B2006-03-15. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. GENERATION III V8 ENGINE PISTON REPAIRS. *TT
3170E2006-02-16. Service bulletin. INTERIOR LIGHTING; EXTERIOR LIGHTING:HEADLIGHTS. IPC, INTERIOR LIGHTS AND/OR HEADLAMPS FLICKER. *AK FB2
38152006-01-25. Service bulletin. ELECTRICAL SYSTEM:WIRING. INSTALLING TRAILER WIRING HARNESS WITHOUT THE Z82 OPTION. *TT
35142006-01-25. Service bulletin. ELECTRICAL SYSTEM. HARNESS LOCATION FOR TRAILER BRAKE INSTALLATION RPO Z82 AND/OR UY7. *TT
0506010142005-11-07. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. OIL LEAK UNDER EXTREME COLD TEMPERATURES (-34 DEGREES C) (-30 DEGREES F) OR COLDER). *TT
0505250022005-11-03. Service bulletin. SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP. DIAGNOSTIC INFORMATION ON ANTILOCK BRAKE SYSTEM (ABS) DIAGNOSTIC TROUBLE CODE(S) (DTC) C0035, C0040, C0050, C0055 AND/OR P0609. *TT
35282005-10-29. Service bulletin. POWER TRAIN. REPLACEMENT TWO PIECE PROPSHAFT INFORMATION. VIBRATION WHILE DRIVING. *TT
007732005-10-27. Service bulletin. POWER TRAIN. 4L60E, 4L65E REPLACEMENT VALVE BODY GASKETS DOES NOT SEEM TO FIT. *TT
33402005-10-27. Service bulletin. ELECTRICAL SYSTEM. INSTRUMENT PANEL CLUSTER WILL NOT ILLUMINATE IN DRL MODE. *TT
3048A2005-10-26. Service bulletin. ENGINE AND ENGINE COOLING:ENGINE. SUPPLEMENT TO 03-06-01-024B 4.3L LU3 L35 TIMING CHAIN TENSIONER. RATTLE-TYPE NOISE COMING FROM THE ENGINE AT APPROXIMATELY 1800 TO 2200 RPMS. *TT
34272005-10-21. Service bulletin. ELECTRICAL SYSTEM. ADDITIONAL DIAGNOSTIC INFORMATION DTC P0757. *TT
35212005-09-28. Service bulletin. SERVICE BRAKES, HYDRAULIC:ANTILOCK/TRACTION CONTROL/ELECTRONIC LIMITED SLIP:ABS WARNING LIGHT; SERVICE BRAKES, AIR:ANTILOCK:ABS WARNING LIGHT. ANTI-LOCK BRAKING SYSTEM (ABS) LIGHT ON SPEEDOMETER MAY BE ERRATIC. DIAGNOSTIC TROUBLE CODE (DTC) C0055 C0235 C0236 OR C0237 STORED IN THE EBCM. *TT 1998-2008 ALL CHEVROLET, GMC, BUICK, AND OLDSMOBILE MID-SIZED TRUCKS AND UTILITIES. 1998-2008 ALL CHEVROLET, GMC, AND CADILLAC FULL SIZED TRUCKS AND UTILITIES. *KB UPDATED ON 09/20/07. *NJ
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

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