Service bulletins for the 2004 GMC T-Series
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.
18 on file from NHTSA, as of 2026-10-19.
By type
By component
By trouble code
Only bulletins with component: Electrical system are shown. Show all
| PIC4310L | 2017-08-15. Service bulletin. EQUIPMENT:ELECTRICAL:NAVIGATIONAL SYSTEM(GLOBAL POSITIONING SYSTEM); ELECTRICAL SYSTEM. This Preliminary Information communication provides information to the technician about vehicle that may have an OnStar system that has progression tones when pressing the blue or red button. Technician will need to call General Motors Technical Assistance Center with the scan tool data from the OnStar system. |
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| SB05-08-133-001B | 2010-08-30. Service bulletin. SEATS; ELECTRICAL SYSTEM:HORN; STRUCTURE:BODY; SERVICE BRAKES, AIR:SUPPLY:LOW PRESSURE WARNING:SWITCH; SERVICE BRAKES, AIR:SUPPLY:COMPRESSOR. ISUZU/GMC/CHEVROLET: DIAGNOSTIC INFORMATION FOR INOPERATIVE AIR SEATS, AIR HORN AND/OR EXHAUST BRAKE AND RELEASE OF NEW AUXILIARY AIR COMPRESSOR RELAY AND PRESSURE SWITCH ON RPO K16 VEHICLES. *PE |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.