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: Brakes are shown. Show all
| 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 |
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| PIT-4935 | 2010-03-26. Service bulletin. SERVICE BRAKES, HYDRAULIC; SERVICE BRAKES, HYDRAULIC:POWER ASSIST:HYDRAULIC; SERVICE BRAKES, HYDRAULIC:POWER ASSIST. CHEVROLET/GMC: BRAKE ASSIST PUMP MOTOR ON AND WARNING LIGHT/CHIME. OWNERS MAY COMMENT WHEN TURNING THE STEERING WHEEL WITH THE BRAKE APPLIED THAT THE HYDRAULIC BRAKE ASSIST PUMP TURNS ON AND THE BRAKE WARNING LAMP AND CHIME MAY SOUND. MODELS CHEVROLET KODIAK, C4500-C7500, CONVENTIONAL CAB, T SERIES, TILT CAB, C6500-C7500; GMC TOPKICK, C4500-C7500, CONVENTIONAL CAB, T SERIES, TILT CAB, T6500-T7500. *PE |
The summaries are NHTSA's. Each bulletin's page links NHTSA's copy of the manufacturer's document.